Home / 84,993,434.40-127,490,151.60-66,499,287.60

Finding the Fourth Proportional to 84,993,434.40, 127,490,151.60 and 66,499,287.60

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Solution

The fourth proportional to 84,993,434.40, 127,490,151.60 and 66,499,287.60 is: 99,748,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,993,434.40 : 127,490,151.60 = 66,499,287.60 : x
  2. Step 2: Convert to fraction form
    84,993,434.40/127,490,151.60 = 66,499,287.60/x
  3. Step 3: Cross multiply
    84,993,434.40x = 127,490,151.60 × 66,499,287.60
  4. Step 4: Simplify right side
    84,993,434.40x = 8,478,004,257,416,000
  5. Step 5: Solve for x
    x = 8,478,004,257,416,000/84,993,434.40
  6. Step 6: Final answer
    x = 99,748,931.40

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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.