Home / 72,250,657.71-99,705,959.64-39,210,898.08

Finding the Fourth Proportional to 72,250,657.71, 99,705,959.64 and 39,210,898.08

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Solution

The fourth proportional to 72,250,657.71, 99,705,959.64 and 39,210,898.08 is: 54,111,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,250,657.71 : 99,705,959.64 = 39,210,898.08 : x
  2. Step 2: Convert to fraction form
    72,250,657.71/99,705,959.64 = 39,210,898.08/x
  3. Step 3: Cross multiply
    72,250,657.71x = 99,705,959.64 × 39,210,898.08
  4. Step 4: Simplify right side
    72,250,657.71x = 3,909,560,221,412,633.50
  5. Step 5: Solve for x
    x = 3,909,560,221,412,633.50/72,250,657.71
  6. Step 6: Final answer
    x = 54,111,067.57

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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.