Home / 1,240,165,948.80-1,860,248,923.20-620,293,166.40

Finding the Fourth Proportional to 1,240,165,948.80, 1,860,248,923.20 and 620,293,166.40

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Solution

The fourth proportional to 1,240,165,948.80, 1,860,248,923.20 and 620,293,166.40 is: 930,439,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,165,948.80 : 1,860,248,923.20 = 620,293,166.40 : x
  2. Step 2: Convert to fraction form
    1,240,165,948.80/1,860,248,923.20 = 620,293,166.40/x
  3. Step 3: Cross multiply
    1,240,165,948.80x = 1,860,248,923.20 × 620,293,166.40
  4. Step 4: Simplify right side
    1,240,165,948.80x = 1,153,899,694,863,918,336
  5. Step 5: Solve for x
    x = 1,153,899,694,863,918,336/1,240,165,948.80
  6. Step 6: Final answer
    x = 930,439,749.60

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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.