Home / 206,706,900.40-310,060,350.60-145,484,897.20

Finding the Fourth Proportional to 206,706,900.40, 310,060,350.60 and 145,484,897.20

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Solution

The fourth proportional to 206,706,900.40, 310,060,350.60 and 145,484,897.20 is: 218,227,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,706,900.40 : 310,060,350.60 = 145,484,897.20 : x
  2. Step 2: Convert to fraction form
    206,706,900.40/310,060,350.60 = 145,484,897.20/x
  3. Step 3: Cross multiply
    206,706,900.40x = 310,060,350.60 × 145,484,897.20
  4. Step 4: Simplify right side
    206,706,900.40x = 45,109,098,232,836,960
  5. Step 5: Solve for x
    x = 45,109,098,232,836,960/206,706,900.40
  6. Step 6: Final answer
    x = 218,227,345.80

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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.