Home / 278,498,803.93-417,762,081.80-105,988,987.51

Finding the Fourth Proportional to 278,498,803.93, 417,762,081.80 and 105,988,987.51

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Solution

The fourth proportional to 278,498,803.93, 417,762,081.80 and 105,988,987.51 is: 158,988,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,498,803.93 : 417,762,081.80 = 105,988,987.51 : x
  2. Step 2: Convert to fraction form
    278,498,803.93/417,762,081.80 = 105,988,987.51/x
  3. Step 3: Cross multiply
    278,498,803.93x = 417,762,081.80 × 105,988,987.51
  4. Step 4: Simplify right side
    278,498,803.93x = 44,278,180,070,051,800
  5. Step 5: Solve for x
    x = 44,278,180,070,051,800/278,498,803.93
  6. Step 6: Final answer
    x = 158,988,762.05

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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.