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Finding the Fourth Proportional to 163,912,186.80, 245,868,280.20 and 154,506,337.20

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Solution

The fourth proportional to 163,912,186.80, 245,868,280.20 and 154,506,337.20 is: 231,759,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,912,186.80 : 245,868,280.20 = 154,506,337.20 : x
  2. Step 2: Convert to fraction form
    163,912,186.80/245,868,280.20 = 154,506,337.20/x
  3. Step 3: Cross multiply
    163,912,186.80x = 245,868,280.20 × 154,506,337.20
  4. Step 4: Simplify right side
    163,912,186.80x = 37,988,207,407,365,280
  5. Step 5: Solve for x
    x = 37,988,207,407,365,280/163,912,186.80
  6. Step 6: Final answer
    x = 231,759,505.80

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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.