Home / 138,244,025.88-190,782,547.92-79,506,730.98

Finding the Fourth Proportional to 138,244,025.88, 190,782,547.92 and 79,506,730.98

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Solution

The fourth proportional to 138,244,025.88, 190,782,547.92 and 79,506,730.98 is: 109,722,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,244,025.88 : 190,782,547.92 = 79,506,730.98 : x
  2. Step 2: Convert to fraction form
    138,244,025.88/190,782,547.92 = 79,506,730.98/x
  3. Step 3: Cross multiply
    138,244,025.88x = 190,782,547.92 × 79,506,730.98
  4. Step 4: Simplify right side
    138,244,025.88x = 15,168,496,713,154,398
  5. Step 5: Solve for x
    x = 15,168,496,713,154,398/138,244,025.88
  6. Step 6: Final answer
    x = 109,722,619.96

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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.