Home / 127,478,905.20-191,218,357.80-116,850,085.20

Finding the Fourth Proportional to 127,478,905.20, 191,218,357.80 and 116,850,085.20

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Solution

The fourth proportional to 127,478,905.20, 191,218,357.80 and 116,850,085.20 is: 175,275,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,478,905.20 : 191,218,357.80 = 116,850,085.20 : x
  2. Step 2: Convert to fraction form
    127,478,905.20/191,218,357.80 = 116,850,085.20/x
  3. Step 3: Cross multiply
    127,478,905.20x = 191,218,357.80 × 116,850,085.20
  4. Step 4: Simplify right side
    127,478,905.20x = 22,343,881,400,734,088
  5. Step 5: Solve for x
    x = 22,343,881,400,734,088/127,478,905.20
  6. Step 6: Final answer
    x = 175,275,127.80

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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.