Home / 811,487,946.90-1,119,878,359.20-459,056,869.14

Finding the Fourth Proportional to 811,487,946.90, 1,119,878,359.20 and 459,056,869.14

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Solution

The fourth proportional to 811,487,946.90, 1,119,878,359.20 and 459,056,869.14 is: 633,512,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,487,946.90 : 1,119,878,359.20 = 459,056,869.14 : x
  2. Step 2: Convert to fraction form
    811,487,946.90/1,119,878,359.20 = 459,056,869.14/x
  3. Step 3: Cross multiply
    811,487,946.90x = 1,119,878,359.20 × 459,056,869.14
  4. Step 4: Simplify right side
    811,487,946.90x = 514,087,853,391,992,320
  5. Step 5: Solve for x
    x = 514,087,853,391,992,320/811,487,946.90
  6. Step 6: Final answer
    x = 633,512,617.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.