Home / 314,898,721.47-472,346,400.23-81,729,263.18

Finding the Fourth Proportional to 314,898,721.47, 472,346,400.23 and 81,729,263.18

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Solution

The fourth proportional to 314,898,721.47, 472,346,400.23 and 81,729,263.18 is: 122,593,458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,898,721.47 : 472,346,400.23 = 81,729,263.18 : x
  2. Step 2: Convert to fraction form
    314,898,721.47/472,346,400.23 = 81,729,263.18/x
  3. Step 3: Cross multiply
    314,898,721.47x = 472,346,400.23 × 81,729,263.18
  4. Step 4: Simplify right side
    314,898,721.47x = 38,604,523,256,523,288
  5. Step 5: Solve for x
    x = 38,604,523,256,523,288/314,898,721.47
  6. Step 6: Final answer
    x = 122,593,458.23

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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.