Home / 429,837,902.57-644,756,459.98-134,735,145.05

Finding the Fourth Proportional to 429,837,902.57, 644,756,459.98 and 134,735,145.05

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Solution

The fourth proportional to 429,837,902.57, 644,756,459.98 and 134,735,145.05 is: 202,102,594.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,837,902.57 : 644,756,459.98 = 134,735,145.05 : x
  2. Step 2: Convert to fraction form
    429,837,902.57/644,756,459.98 = 134,735,145.05/x
  3. Step 3: Cross multiply
    429,837,902.57x = 644,756,459.98 × 134,735,145.05
  4. Step 4: Simplify right side
    429,837,902.57x = 86,871,355,156,656,160
  5. Step 5: Solve for x
    x = 86,871,355,156,656,160/429,837,902.57
  6. Step 6: Final answer
    x = 202,102,594.11

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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.