Home / 618,301,721.40-927,452,582.10-209,357,871.90

Finding the Fourth Proportional to 618,301,721.40, 927,452,582.10 and 209,357,871.90

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Solution

The fourth proportional to 618,301,721.40, 927,452,582.10 and 209,357,871.90 is: 314,036,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,301,721.40 : 927,452,582.10 = 209,357,871.90 : x
  2. Step 2: Convert to fraction form
    618,301,721.40/927,452,582.10 = 209,357,871.90/x
  3. Step 3: Cross multiply
    618,301,721.40x = 927,452,582.10 × 209,357,871.90
  4. Step 4: Simplify right side
    618,301,721.40x = 194,169,498,876,616,032
  5. Step 5: Solve for x
    x = 194,169,498,876,616,032/618,301,721.40
  6. Step 6: Final answer
    x = 314,036,807.85

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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.