Home / 100,849,547.80-151,274,321.70-86,500,640.80

Finding the Fourth Proportional to 100,849,547.80, 151,274,321.70 and 86,500,640.80

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Solution

The fourth proportional to 100,849,547.80, 151,274,321.70 and 86,500,640.80 is: 129,750,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,849,547.80 : 151,274,321.70 = 86,500,640.80 : x
  2. Step 2: Convert to fraction form
    100,849,547.80/151,274,321.70 = 86,500,640.80/x
  3. Step 3: Cross multiply
    100,849,547.80x = 151,274,321.70 × 86,500,640.80
  4. Step 4: Simplify right side
    100,849,547.80x = 13,085,325,763,635,344
  5. Step 5: Solve for x
    x = 13,085,325,763,635,344/100,849,547.80
  6. Step 6: Final answer
    x = 129,750,961.20

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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.