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Finding the Third Proportional to 253,634,484.46 and 392,724,692.29

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Solution

The third proportional to 253,634,484.46 and 392,724,692.29 is: 608,090,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,634,484.46 : 392,724,692.29 = 392,724,692.29 : x
  2. Step 2: Convert to fraction form
    253,634,484.46/392,724,692.29 = 392,724,692.29/x
  3. Step 3: Cross multiply
    253,634,484.46x = 392,724,692.29 × 392,724,692.29
  4. Step 4: Simplify right side
    253,634,484.46x = 154,232,683,932,759,296
  5. Step 5: Solve for x
    x = 154,232,683,932,759,296/253,634,484.46
  6. Step 6: Final answer
    x = 608,090,355.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.