Home / 615,345,946.20-923,616,116.10-308,983,987.80

Finding the Fourth Proportional to 615,345,946.20, 923,616,116.10 and 308,983,987.80

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Solution

The fourth proportional to 615,345,946.20, 923,616,116.10 and 308,983,987.80 is: 463,775,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,345,946.20 : 923,616,116.10 = 308,983,987.80 : x
  2. Step 2: Convert to fraction form
    615,345,946.20/923,616,116.10 = 308,983,987.80/x
  3. Step 3: Cross multiply
    615,345,946.20x = 923,616,116.10 × 308,983,987.80
  4. Step 4: Simplify right side
    615,345,946.20x = 285,382,590,748,925,792
  5. Step 5: Solve for x
    x = 285,382,590,748,925,792/615,345,946.20
  6. Step 6: Final answer
    x = 463,775,852.45

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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.