Home / 1,288,143,150.30-1,932,214,725.45-879,996,462.30

Finding the Fourth Proportional to 1,288,143,150.30, 1,932,214,725.45 and 879,996,462.30

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Solution

The fourth proportional to 1,288,143,150.30, 1,932,214,725.45 and 879,996,462.30 is: 1,319,994,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,143,150.30 : 1,932,214,725.45 = 879,996,462.30 : x
  2. Step 2: Convert to fraction form
    1,288,143,150.30/1,932,214,725.45 = 879,996,462.30/x
  3. Step 3: Cross multiply
    1,288,143,150.30x = 1,932,214,725.45 × 879,996,462.30
  4. Step 4: Simplify right side
    1,288,143,150.30x = 1,700,342,122,799,965,696
  5. Step 5: Solve for x
    x = 1,700,342,122,799,965,696/1,288,143,150.30
  6. Step 6: Final answer
    x = 1,319,994,693.45

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Double scale
Find fourth proportional to 1,288,143,151.30, 1,932,214,726.95 and 879,996,463.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.