Home / 209,931,866.10-314,897,799.15-133,593,318.90

Finding the Fourth Proportional to 209,931,866.10, 314,897,799.15 and 133,593,318.90

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Solution

The fourth proportional to 209,931,866.10, 314,897,799.15 and 133,593,318.90 is: 200,389,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,931,866.10 : 314,897,799.15 = 133,593,318.90 : x
  2. Step 2: Convert to fraction form
    209,931,866.10/314,897,799.15 = 133,593,318.90/x
  3. Step 3: Cross multiply
    209,931,866.10x = 314,897,799.15 × 133,593,318.90
  4. Step 4: Simplify right side
    209,931,866.10x = 42,068,242,102,754,096
  5. Step 5: Solve for x
    x = 42,068,242,102,754,096/209,931,866.10
  6. Step 6: Final answer
    x = 200,389,978.35

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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.