Home / 7,884,810.15-10,878,981.79-4,619,870.66

Finding the Fourth Proportional to 7,884,810.15, 10,878,981.79 and 4,619,870.66

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Solution

The fourth proportional to 7,884,810.15, 10,878,981.79 and 4,619,870.66 is: 6,374,216.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884,810.15 : 10,878,981.79 = 4,619,870.66 : x
  2. Step 2: Convert to fraction form
    7,884,810.15/10,878,981.79 = 4,619,870.66/x
  3. Step 3: Cross multiply
    7,884,810.15x = 10,878,981.79 × 4,619,870.66
  4. Step 4: Simplify right side
    7,884,810.15x = 50,259,488,758,406.74
  5. Step 5: Solve for x
    x = 50,259,488,758,406.74/7,884,810.15
  6. Step 6: Final answer
    x = 6,374,216.73

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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.