Home / 79,729,430.40-119,594,145.60-39,418,646.40

Finding the Fourth Proportional to 79,729,430.40, 119,594,145.60 and 39,418,646.40

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Solution

The fourth proportional to 79,729,430.40, 119,594,145.60 and 39,418,646.40 is: 59,127,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,729,430.40 : 119,594,145.60 = 39,418,646.40 : x
  2. Step 2: Convert to fraction form
    79,729,430.40/119,594,145.60 = 39,418,646.40/x
  3. Step 3: Cross multiply
    79,729,430.40x = 119,594,145.60 × 39,418,646.40
  4. Step 4: Simplify right side
    79,729,430.40x = 4,714,239,336,916,515
  5. Step 5: Solve for x
    x = 4,714,239,336,916,515/79,729,430.40
  6. Step 6: Final answer
    x = 59,127,969.60

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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.