Home / 42,905,132.40-64,357,698.60-39,377,938.80

Finding the Fourth Proportional to 42,905,132.40, 64,357,698.60 and 39,377,938.80

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Solution

The fourth proportional to 42,905,132.40, 64,357,698.60 and 39,377,938.80 is: 59,066,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,905,132.40 : 64,357,698.60 = 39,377,938.80 : x
  2. Step 2: Convert to fraction form
    42,905,132.40/64,357,698.60 = 39,377,938.80/x
  3. Step 3: Cross multiply
    42,905,132.40x = 64,357,698.60 × 39,377,938.80
  4. Step 4: Simplify right side
    42,905,132.40x = 2,534,273,516,779,645.50
  5. Step 5: Solve for x
    x = 2,534,273,516,779,645.50/42,905,132.40
  6. Step 6: Final answer
    x = 59,066,908.20

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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.