Home / 292,730,969.23-439,049,337.44-85,420,706.68

Finding the Fourth Proportional to 292,730,969.23, 439,049,337.44 and 85,420,706.68

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Solution

The fourth proportional to 292,730,969.23, 439,049,337.44 and 85,420,706.68 is: 128,117,311.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,730,969.23 : 439,049,337.44 = 85,420,706.68 : x
  2. Step 2: Convert to fraction form
    292,730,969.23/439,049,337.44 = 85,420,706.68/x
  3. Step 3: Cross multiply
    292,730,969.23x = 439,049,337.44 × 85,420,706.68
  4. Step 4: Simplify right side
    292,730,969.23x = 37,503,904,669,642,704
  5. Step 5: Solve for x
    x = 37,503,904,669,642,704/292,730,969.23
  6. Step 6: Final answer
    x = 128,117,311.15

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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.