Home / 152,955,347.86-211,078,410.40-83,340,728.72

Finding the Fourth Proportional to 152,955,347.86, 211,078,410.40 and 83,340,728.72

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Solution

The fourth proportional to 152,955,347.86, 211,078,410.40 and 83,340,728.72 is: 115,010,222.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,955,347.86 : 211,078,410.40 = 83,340,728.72 : x
  2. Step 2: Convert to fraction form
    152,955,347.86/211,078,410.40 = 83,340,728.72/x
  3. Step 3: Cross multiply
    152,955,347.86x = 211,078,410.40 × 83,340,728.72
  4. Step 4: Simplify right side
    152,955,347.86x = 17,591,428,539,635,554
  5. Step 5: Solve for x
    x = 17,591,428,539,635,554/152,955,347.86
  6. Step 6: Final answer
    x = 115,010,222.17

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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.