Home / 646,816,084.80-970,224,127.20-258,446,875.20

Finding the Fourth Proportional to 646,816,084.80, 970,224,127.20 and 258,446,875.20

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Solution

The fourth proportional to 646,816,084.80, 970,224,127.20 and 258,446,875.20 is: 387,670,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,816,084.80 : 970,224,127.20 = 258,446,875.20 : x
  2. Step 2: Convert to fraction form
    646,816,084.80/970,224,127.20 = 258,446,875.20/x
  3. Step 3: Cross multiply
    646,816,084.80x = 970,224,127.20 × 258,446,875.20
  4. Step 4: Simplify right side
    646,816,084.80x = 250,751,393,918,487,328
  5. Step 5: Solve for x
    x = 250,751,393,918,487,328/646,816,084.80
  6. Step 6: Final answer
    x = 387,670,312.80

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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.