Home / 147,636,136.80-221,454,205.20-90,240,508.80

Finding the Fourth Proportional to 147,636,136.80, 221,454,205.20 and 90,240,508.80

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Solution

The fourth proportional to 147,636,136.80, 221,454,205.20 and 90,240,508.80 is: 135,360,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,636,136.80 : 221,454,205.20 = 90,240,508.80 : x
  2. Step 2: Convert to fraction form
    147,636,136.80/221,454,205.20 = 90,240,508.80/x
  3. Step 3: Cross multiply
    147,636,136.80x = 221,454,205.20 × 90,240,508.80
  4. Step 4: Simplify right side
    147,636,136.80x = 19,984,140,153,147,604
  5. Step 5: Solve for x
    x = 19,984,140,153,147,604/147,636,136.80
  6. Step 6: Final answer
    x = 135,360,763.20

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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.