Home / 718,961,937.52-992,157,772.93-401,427,074.47

Finding the Fourth Proportional to 718,961,937.52, 992,157,772.93 and 401,427,074.47

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Solution

The fourth proportional to 718,961,937.52, 992,157,772.93 and 401,427,074.47 is: 553,963,946.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,961,937.52 : 992,157,772.93 = 401,427,074.47 : x
  2. Step 2: Convert to fraction form
    718,961,937.52/992,157,772.93 = 401,427,074.47/x
  3. Step 3: Cross multiply
    718,961,937.52x = 992,157,772.93 × 401,427,074.47
  4. Step 4: Simplify right side
    718,961,937.52x = 398,278,992,199,960,448
  5. Step 5: Solve for x
    x = 398,278,992,199,960,448/718,961,937.52
  6. Step 6: Final answer
    x = 553,963,946.37

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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.