Home / 147,532,456.80-221,298,685.20-90,136,828.80

Finding the Fourth Proportional to 147,532,456.80, 221,298,685.20 and 90,136,828.80

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Solution

The fourth proportional to 147,532,456.80, 221,298,685.20 and 90,136,828.80 is: 135,205,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,532,456.80 : 221,298,685.20 = 90,136,828.80 : x
  2. Step 2: Convert to fraction form
    147,532,456.80/221,298,685.20 = 90,136,828.80/x
  3. Step 3: Cross multiply
    147,532,456.80x = 221,298,685.20 × 90,136,828.80
  4. Step 4: Simplify right side
    147,532,456.80x = 19,947,161,701,537,492
  5. Step 5: Solve for x
    x = 19,947,161,701,537,492/147,532,456.80
  6. Step 6: Final answer
    x = 135,205,243.20

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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.