Home / 81,528,077,772.20-122,292,116,658.30-55,406,689,740.20

Finding the Fourth Proportional to 81,528,077,772.20, 122,292,116,658.30 and 55,406,689,740.20

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Solution

The fourth proportional to 81,528,077,772.20, 122,292,116,658.30 and 55,406,689,740.20 is: 83,110,034,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,528,077,772.20 : 122,292,116,658.30 = 55,406,689,740.20 : x
  2. Step 2: Convert to fraction form
    81,528,077,772.20/122,292,116,658.30 = 55,406,689,740.20/x
  3. Step 3: Cross multiply
    81,528,077,772.20x = 122,292,116,658.30 × 55,406,689,740.20
  4. Step 4: Simplify right side
    81,528,077,772.20x = 6,775,801,365,358,771,699,712
  5. Step 5: Solve for x
    x = 6,775,801,365,358,771,699,712/81,528,077,772.20
  6. Step 6: Final answer
    x = 83,110,034,610.30

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Double scale
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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.