Home / 82,678,334.40-124,017,501.60-39,631,613.40

Finding the Fourth Proportional to 82,678,334.40, 124,017,501.60 and 39,631,613.40

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Solution

The fourth proportional to 82,678,334.40, 124,017,501.60 and 39,631,613.40 is: 59,447,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,678,334.40 : 124,017,501.60 = 39,631,613.40 : x
  2. Step 2: Convert to fraction form
    82,678,334.40/124,017,501.60 = 39,631,613.40/x
  3. Step 3: Cross multiply
    82,678,334.40x = 124,017,501.60 × 39,631,613.40
  4. Step 4: Simplify right side
    82,678,334.40x = 4,915,013,678,245,081
  5. Step 5: Solve for x
    x = 4,915,013,678,245,081/82,678,334.40
  6. Step 6: Final answer
    x = 59,447,420.10

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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.