Home / 811,156,070.16-1,119,395,966.76-439,878,007.44

Finding the Fourth Proportional to 811,156,070.16, 1,119,395,966.76 and 439,878,007.44

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Solution

The fourth proportional to 811,156,070.16, 1,119,395,966.76 and 439,878,007.44 is: 607,031,970.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,156,070.16 : 1,119,395,966.76 = 439,878,007.44 : x
  2. Step 2: Convert to fraction form
    811,156,070.16/1,119,395,966.76 = 439,878,007.44/x
  3. Step 3: Cross multiply
    811,156,070.16x = 1,119,395,966.76 × 439,878,007.44
  4. Step 4: Simplify right side
    811,156,070.16x = 492,397,667,394,761,280
  5. Step 5: Solve for x
    x = 492,397,667,394,761,280/811,156,070.16
  6. Step 6: Final answer
    x = 607,031,970.18

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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.