Home / 127,630,678.04-176,127,943.46-78,067,410.89

Finding the Fourth Proportional to 127,630,678.04, 176,127,943.46 and 78,067,410.89

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Solution

The fourth proportional to 127,630,678.04, 176,127,943.46 and 78,067,410.89 is: 107,731,563.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,630,678.04 : 176,127,943.46 = 78,067,410.89 : x
  2. Step 2: Convert to fraction form
    127,630,678.04/176,127,943.46 = 78,067,410.89/x
  3. Step 3: Cross multiply
    127,630,678.04x = 176,127,943.46 × 78,067,410.89
  4. Step 4: Simplify right side
    127,630,678.04x = 13,749,852,530,031,534
  5. Step 5: Solve for x
    x = 13,749,852,530,031,534/127,630,678.04
  6. Step 6: Final answer
    x = 107,731,563.77

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1.5x scale

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.