Home / 82,716,618.30-124,074,927.45-55,435,980.30

Finding the Fourth Proportional to 82,716,618.30, 124,074,927.45 and 55,435,980.30

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Solution

The fourth proportional to 82,716,618.30, 124,074,927.45 and 55,435,980.30 is: 83,153,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,716,618.30 : 124,074,927.45 = 55,435,980.30 : x
  2. Step 2: Convert to fraction form
    82,716,618.30/124,074,927.45 = 55,435,980.30/x
  3. Step 3: Cross multiply
    82,716,618.30x = 124,074,927.45 × 55,435,980.30
  4. Step 4: Simplify right side
    82,716,618.30x = 6,878,215,233,842,129
  5. Step 5: Solve for x
    x = 6,878,215,233,842,129/82,716,618.30
  6. Step 6: Final answer
    x = 83,153,970.45

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Double scale
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Similar ratio
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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.