Home / 207,036,151.20-310,436,128.80-77,647,982.40

Finding the Fourth Proportional to 207,036,151.20, 310,436,128.80 and 77,647,982.40

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Solution

The fourth proportional to 207,036,151.20, 310,436,128.80 and 77,647,982.40 is: 116,427,681.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,036,151.20 : 310,436,128.80 = 77,647,982.40 : x
  2. Step 2: Convert to fraction form
    207,036,151.20/310,436,128.80 = 77,647,982.40/x
  3. Step 3: Cross multiply
    207,036,151.20x = 310,436,128.80 × 77,647,982.40
  4. Step 4: Simplify right side
    207,036,151.20x = 24,104,739,065,386,536
  5. Step 5: Solve for x
    x = 24,104,739,065,386,536/207,036,151.20
  6. Step 6: Final answer
    x = 116,427,681.47

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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.