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Finding the Fourth Proportional to 615,754,172.80, 922,343,553.60 and 288,508,988.80

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Solution

The fourth proportional to 615,754,172.80, 922,343,553.60 and 288,508,988.80 is: 432,160,134.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,754,172.80 : 922,343,553.60 = 288,508,988.80 : x
  2. Step 2: Convert to fraction form
    615,754,172.80/922,343,553.60 = 288,508,988.80/x
  3. Step 3: Cross multiply
    615,754,172.80x = 922,343,553.60 × 288,508,988.80
  4. Step 4: Simplify right side
    615,754,172.80x = 266,104,405,975,334,624
  5. Step 5: Solve for x
    x = 266,104,405,975,334,624/615,754,172.80
  6. Step 6: Final answer
    x = 432,160,134.24

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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.