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Finding the Fourth Proportional to 206,989,527.80, 310,484,291.70 and 61,445,552.60

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Solution

The fourth proportional to 206,989,527.80, 310,484,291.70 and 61,445,552.60 is: 92,168,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,989,527.80 : 310,484,291.70 = 61,445,552.60 : x
  2. Step 2: Convert to fraction form
    206,989,527.80/310,484,291.70 = 61,445,552.60/x
  3. Step 3: Cross multiply
    206,989,527.80x = 310,484,291.70 × 61,445,552.60
  4. Step 4: Simplify right side
    206,989,527.80x = 19,077,878,877,126,092
  5. Step 5: Solve for x
    x = 19,077,878,877,126,092/206,989,527.80
  6. Step 6: Final answer
    x = 92,168,328.90

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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.