Home / 523,346,557.80-722,223,026.10-288,405,647.88

Finding the Fourth Proportional to 523,346,557.80, 722,223,026.10 and 288,405,647.88

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Solution

The fourth proportional to 523,346,557.80, 722,223,026.10 and 288,405,647.88 is: 398,002,426.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,346,557.80 : 722,223,026.10 = 288,405,647.88 : x
  2. Step 2: Convert to fraction form
    523,346,557.80/722,223,026.10 = 288,405,647.88/x
  3. Step 3: Cross multiply
    523,346,557.80x = 722,223,026.10 × 288,405,647.88
  4. Step 4: Simplify right side
    523,346,557.80x = 208,293,199,756,224,640
  5. Step 5: Solve for x
    x = 208,293,199,756,224,640/523,346,557.80
  6. Step 6: Final answer
    x = 398,002,426.22

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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.