Home / 386,091,300.24-532,802,209.10-209,868,810.75

Finding the Fourth Proportional to 386,091,300.24, 532,802,209.10 and 209,868,810.75

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Solution

The fourth proportional to 386,091,300.24, 532,802,209.10 and 209,868,810.75 is: 289,616,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,091,300.24 : 532,802,209.10 = 209,868,810.75 : x
  2. Step 2: Convert to fraction form
    386,091,300.24/532,802,209.10 = 209,868,810.75/x
  3. Step 3: Cross multiply
    386,091,300.24x = 532,802,209.10 × 209,868,810.75
  4. Step 4: Simplify right side
    386,091,300.24x = 111,818,565,987,740,496
  5. Step 5: Solve for x
    x = 111,818,565,987,740,496/386,091,300.24
  6. Step 6: Final answer
    x = 289,616,901.28

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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.