Home / 207,192,539.40-310,788,809.10-99,697,115.40

Finding the Fourth Proportional to 207,192,539.40, 310,788,809.10 and 99,697,115.40

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Solution

The fourth proportional to 207,192,539.40, 310,788,809.10 and 99,697,115.40 is: 149,545,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,192,539.40 : 310,788,809.10 = 99,697,115.40 : x
  2. Step 2: Convert to fraction form
    207,192,539.40/310,788,809.10 = 99,697,115.40/x
  3. Step 3: Cross multiply
    207,192,539.40x = 310,788,809.10 × 99,697,115.40
  4. Step 4: Simplify right side
    207,192,539.40x = 30,984,747,765,871,276
  5. Step 5: Solve for x
    x = 30,984,747,765,871,276/207,192,539.40
  6. Step 6: Final answer
    x = 149,545,673.10

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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.