Home / 1,394,233,648.80-2,091,429,116.40-424,916,887.20

Finding the Fourth Proportional to 1,394,233,648.80, 2,091,429,116.40 and 424,916,887.20

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Solution

The fourth proportional to 1,394,233,648.80, 2,091,429,116.40 and 424,916,887.20 is: 637,399,298.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,233,648.80 : 2,091,429,116.40 = 424,916,887.20 : x
  2. Step 2: Convert to fraction form
    1,394,233,648.80/2,091,429,116.40 = 424,916,887.20/x
  3. Step 3: Cross multiply
    1,394,233,648.80x = 2,091,429,116.40 × 424,916,887.20
  4. Step 4: Simplify right side
    1,394,233,648.80x = 888,683,549,940,134,528
  5. Step 5: Solve for x
    x = 888,683,549,940,134,528/1,394,233,648.80
  6. Step 6: Final answer
    x = 637,399,298.68

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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.