Home / 532,238,559.20-798,357,838.80-388,911,327.20

Finding the Fourth Proportional to 532,238,559.20, 798,357,838.80 and 388,911,327.20

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Solution

The fourth proportional to 532,238,559.20, 798,357,838.80 and 388,911,327.20 is: 583,366,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,238,559.20 : 798,357,838.80 = 388,911,327.20 : x
  2. Step 2: Convert to fraction form
    532,238,559.20/798,357,838.80 = 388,911,327.20/x
  3. Step 3: Cross multiply
    532,238,559.20x = 798,357,838.80 × 388,911,327.20
  4. Step 4: Simplify right side
    532,238,559.20x = 310,490,406,668,231,616
  5. Step 5: Solve for x
    x = 310,490,406,668,231,616/532,238,559.20
  6. Step 6: Final answer
    x = 583,366,990.80

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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.