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Finding the Fourth Proportional to 615,381,657.60, 923,072,486.40 and 178,681,497.60

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Solution

The fourth proportional to 615,381,657.60, 923,072,486.40 and 178,681,497.60 is: 268,022,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,381,657.60 : 923,072,486.40 = 178,681,497.60 : x
  2. Step 2: Convert to fraction form
    615,381,657.60/923,072,486.40 = 178,681,497.60/x
  3. Step 3: Cross multiply
    615,381,657.60x = 923,072,486.40 × 178,681,497.60
  4. Step 4: Simplify right side
    615,381,657.60x = 164,935,974,263,307,616
  5. Step 5: Solve for x
    x = 164,935,974,263,307,616/615,381,657.60
  6. Step 6: Final answer
    x = 268,022,246.40

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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.