Home / 90,825,878.03-136,238,817.05-74,683,357.65

Finding the Fourth Proportional to 90,825,878.03, 136,238,817.05 and 74,683,357.65

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Solution

The fourth proportional to 90,825,878.03, 136,238,817.05 and 74,683,357.65 is: 112,025,036.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825,878.03 : 136,238,817.05 = 74,683,357.65 : x
  2. Step 2: Convert to fraction form
    90,825,878.03/136,238,817.05 = 74,683,357.65/x
  3. Step 3: Cross multiply
    90,825,878.03x = 136,238,817.05 × 74,683,357.65
  4. Step 4: Simplify right side
    90,825,878.03x = 10,174,772,299,558,070
  5. Step 5: Solve for x
    x = 10,174,772,299,558,070/90,825,878.03
  6. Step 6: Final answer
    x = 112,025,036.48

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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.