Home / 249,695,998.80-374,543,998.20-128,763,646.80

Finding the Fourth Proportional to 249,695,998.80, 374,543,998.20 and 128,763,646.80

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Solution

The fourth proportional to 249,695,998.80, 374,543,998.20 and 128,763,646.80 is: 193,145,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,695,998.80 : 374,543,998.20 = 128,763,646.80 : x
  2. Step 2: Convert to fraction form
    249,695,998.80/374,543,998.20 = 128,763,646.80/x
  3. Step 3: Cross multiply
    249,695,998.80x = 374,543,998.20 × 128,763,646.80
  4. Step 4: Simplify right side
    249,695,998.80x = 48,227,651,095,284,632
  5. Step 5: Solve for x
    x = 48,227,651,095,284,632/249,695,998.80
  6. Step 6: Final answer
    x = 193,145,470.20

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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.