Home / 79,931,820.30-119,897,730.45-19,347,546.30

Finding the Fourth Proportional to 79,931,820.30, 119,897,730.45 and 19,347,546.30

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Solution

The fourth proportional to 79,931,820.30, 119,897,730.45 and 19,347,546.30 is: 29,021,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,931,820.30 : 119,897,730.45 = 19,347,546.30 : x
  2. Step 2: Convert to fraction form
    79,931,820.30/119,897,730.45 = 19,347,546.30/x
  3. Step 3: Cross multiply
    79,931,820.30x = 119,897,730.45 × 19,347,546.30
  4. Step 4: Simplify right side
    79,931,820.30x = 2,319,726,891,146,295
  5. Step 5: Solve for x
    x = 2,319,726,891,146,295/79,931,820.30
  6. Step 6: Final answer
    x = 29,021,319.45

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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.