Home / 85,528,150.20-128,292,225.30-84,252,691.80

Finding the Fourth Proportional to 85,528,150.20, 128,292,225.30 and 84,252,691.80

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Solution

The fourth proportional to 85,528,150.20, 128,292,225.30 and 84,252,691.80 is: 126,379,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,528,150.20 : 128,292,225.30 = 84,252,691.80 : x
  2. Step 2: Convert to fraction form
    85,528,150.20/128,292,225.30 = 84,252,691.80/x
  3. Step 3: Cross multiply
    85,528,150.20x = 128,292,225.30 × 84,252,691.80
  4. Step 4: Simplify right side
    85,528,150.20x = 10,808,965,318,537,062
  5. Step 5: Solve for x
    x = 10,808,965,318,537,062/85,528,150.20
  6. Step 6: Final answer
    x = 126,379,037.70

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1.5x scale

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.