Home / 615,345,947.20-923,616,117.60-308,983,988.80

Finding the Fourth Proportional to 615,345,947.20, 923,616,117.60 and 308,983,988.80

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Solution

The fourth proportional to 615,345,947.20, 923,616,117.60 and 308,983,988.80 is: 463,775,853.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,345,947.20 : 923,616,117.60 = 308,983,988.80 : x
  2. Step 2: Convert to fraction form
    615,345,947.20/923,616,117.60 = 308,983,988.80/x
  3. Step 3: Cross multiply
    615,345,947.20x = 923,616,117.60 × 308,983,988.80
  4. Step 4: Simplify right side
    615,345,947.20x = 285,382,592,136,017,888
  5. Step 5: Solve for x
    x = 285,382,592,136,017,888/615,345,947.20
  6. Step 6: Final answer
    x = 463,775,853.95

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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.