Home / 78,699,669.80-118,049,504.70-62,260,428.20

Finding the Fourth Proportional to 78,699,669.80, 118,049,504.70 and 62,260,428.20

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Solution

The fourth proportional to 78,699,669.80, 118,049,504.70 and 62,260,428.20 is: 93,390,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,699,669.80 : 118,049,504.70 = 62,260,428.20 : x
  2. Step 2: Convert to fraction form
    78,699,669.80/118,049,504.70 = 62,260,428.20/x
  3. Step 3: Cross multiply
    78,699,669.80x = 118,049,504.70 × 62,260,428.20
  4. Step 4: Simplify right side
    78,699,669.80x = 7,349,812,711,419,913
  5. Step 5: Solve for x
    x = 7,349,812,711,419,913/78,699,669.80
  6. Step 6: Final answer
    x = 93,390,642.30

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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.