Home / 130,417,304.80-179,976,257.64-71,685,987.84

Finding the Fourth Proportional to 130,417,304.80, 179,976,257.64 and 71,685,987.84

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Solution

The fourth proportional to 130,417,304.80, 179,976,257.64 and 71,685,987.84 is: 98,926,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,417,304.80 : 179,976,257.64 = 71,685,987.84 : x
  2. Step 2: Convert to fraction form
    130,417,304.80/179,976,257.64 = 71,685,987.84/x
  3. Step 3: Cross multiply
    130,417,304.80x = 179,976,257.64 × 71,685,987.84
  4. Step 4: Simplify right side
    130,417,304.80x = 12,901,775,816,669,746
  5. Step 5: Solve for x
    x = 12,901,775,816,669,746/130,417,304.80
  6. Step 6: Final answer
    x = 98,926,870.45

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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.