Home / 429,837,902.32-644,756,459.60-134,735,144.80

Finding the Fourth Proportional to 429,837,902.32, 644,756,459.60 and 134,735,144.80

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Solution

The fourth proportional to 429,837,902.32, 644,756,459.60 and 134,735,144.80 is: 202,102,593.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,837,902.32 : 644,756,459.60 = 134,735,144.80 : x
  2. Step 2: Convert to fraction form
    429,837,902.32/644,756,459.60 = 134,735,144.80/x
  3. Step 3: Cross multiply
    429,837,902.32x = 644,756,459.60 × 134,735,144.80
  4. Step 4: Simplify right side
    429,837,902.32x = 86,871,354,944,941,360
  5. Step 5: Solve for x
    x = 86,871,354,944,941,360/429,837,902.32
  6. Step 6: Final answer
    x = 202,102,593.74

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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.