Home / 487,154,866.80-730,732,300.20-472,805,959.80

Finding the Fourth Proportional to 487,154,866.80, 730,732,300.20 and 472,805,959.80

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Solution

The fourth proportional to 487,154,866.80, 730,732,300.20 and 472,805,959.80 is: 709,208,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,154,866.80 : 730,732,300.20 = 472,805,959.80 : x
  2. Step 2: Convert to fraction form
    487,154,866.80/730,732,300.20 = 472,805,959.80/x
  3. Step 3: Cross multiply
    487,154,866.80x = 730,732,300.20 × 472,805,959.80
  4. Step 4: Simplify right side
    487,154,866.80x = 345,494,586,552,922,752
  5. Step 5: Solve for x
    x = 345,494,586,552,922,752/487,154,866.80
  6. Step 6: Final answer
    x = 709,208,939.70

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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.