Home / 207,192,538.40-310,788,807.60-99,697,114.40

Finding the Fourth Proportional to 207,192,538.40, 310,788,807.60 and 99,697,114.40

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Solution

The fourth proportional to 207,192,538.40, 310,788,807.60 and 99,697,114.40 is: 149,545,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,192,538.40 : 310,788,807.60 = 99,697,114.40 : x
  2. Step 2: Convert to fraction form
    207,192,538.40/310,788,807.60 = 99,697,114.40/x
  3. Step 3: Cross multiply
    207,192,538.40x = 310,788,807.60 × 99,697,114.40
  4. Step 4: Simplify right side
    207,192,538.40x = 30,984,747,305,536,792
  5. Step 5: Solve for x
    x = 30,984,747,305,536,792/207,192,538.40
  6. Step 6: Final answer
    x = 149,545,671.60

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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.