Home / 487,154,875.80-730,732,313.70-472,805,968.80

Finding the Fourth Proportional to 487,154,875.80, 730,732,313.70 and 472,805,968.80

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Solution

The fourth proportional to 487,154,875.80, 730,732,313.70 and 472,805,968.80 is: 709,208,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,154,875.80 : 730,732,313.70 = 472,805,968.80 : x
  2. Step 2: Convert to fraction form
    487,154,875.80/730,732,313.70 = 472,805,968.80/x
  3. Step 3: Cross multiply
    487,154,875.80x = 730,732,313.70 × 472,805,968.80
  4. Step 4: Simplify right side
    487,154,875.80x = 345,494,599,512,394,048
  5. Step 5: Solve for x
    x = 345,494,599,512,394,048/487,154,875.80
  6. Step 6: Final answer
    x = 709,208,953.20

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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.