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Finding the Fourth Proportional to 838,147,073.08, 1,156,654,944.62 and 480,973,055.80

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Solution

The fourth proportional to 838,147,073.08, 1,156,654,944.62 and 480,973,055.80 is: 663,749,693.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,147,073.08 : 1,156,654,944.62 = 480,973,055.80 : x
  2. Step 2: Convert to fraction form
    838,147,073.08/1,156,654,944.62 = 480,973,055.80/x
  3. Step 3: Cross multiply
    838,147,073.08x = 1,156,654,944.62 × 480,973,055.80
  4. Step 4: Simplify right side
    838,147,073.08x = 556,319,863,220,061,120
  5. Step 5: Solve for x
    x = 556,319,863,220,061,120/838,147,073.08
  6. Step 6: Final answer
    x = 663,749,693.92

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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.