Home / 124,441,036.80-186,661,555.20-78,855,014.40

Finding the Fourth Proportional to 124,441,036.80, 186,661,555.20 and 78,855,014.40

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Solution

The fourth proportional to 124,441,036.80, 186,661,555.20 and 78,855,014.40 is: 118,282,521.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,441,036.80 : 186,661,555.20 = 78,855,014.40 : x
  2. Step 2: Convert to fraction form
    124,441,036.80/186,661,555.20 = 78,855,014.40/x
  3. Step 3: Cross multiply
    124,441,036.80x = 186,661,555.20 × 78,855,014.40
  4. Step 4: Simplify right side
    124,441,036.80x = 14,719,199,623,222,396
  5. Step 5: Solve for x
    x = 14,719,199,623,222,396/124,441,036.80
  6. Step 6: Final answer
    x = 118,282,521.60

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1.5x scale

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.