Home / 220,154,681.80-330,232,022.70-206,549,792.20

Finding the Fourth Proportional to 220,154,681.80, 330,232,022.70 and 206,549,792.20

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Solution

The fourth proportional to 220,154,681.80, 330,232,022.70 and 206,549,792.20 is: 309,824,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,154,681.80 : 330,232,022.70 = 206,549,792.20 : x
  2. Step 2: Convert to fraction form
    220,154,681.80/330,232,022.70 = 206,549,792.20/x
  3. Step 3: Cross multiply
    220,154,681.80x = 330,232,022.70 × 206,549,792.20
  4. Step 4: Simplify right side
    220,154,681.80x = 68,209,355,666,470,680
  5. Step 5: Solve for x
    x = 68,209,355,666,470,680/220,154,681.80
  6. Step 6: Final answer
    x = 309,824,688.30

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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.