Home / 900,334,508.76-1,242,434,937.60-498,466,168.56

Finding the Fourth Proportional to 900,334,508.76, 1,242,434,937.60 and 498,466,168.56

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Solution

The fourth proportional to 900,334,508.76, 1,242,434,937.60 and 498,466,168.56 is: 687,868,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,334,508.76 : 1,242,434,937.60 = 498,466,168.56 : x
  2. Step 2: Convert to fraction form
    900,334,508.76/1,242,434,937.60 = 498,466,168.56/x
  3. Step 3: Cross multiply
    900,334,508.76x = 1,242,434,937.60 × 498,466,168.56
  4. Step 4: Simplify right side
    900,334,508.76x = 619,311,783,030,554,624
  5. Step 5: Solve for x
    x = 619,311,783,030,554,624/900,334,508.76
  6. Step 6: Final answer
    x = 687,868,538.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.