Home / 124,527,643.80-186,791,465.70-79,289,986.20

Finding the Fourth Proportional to 124,527,643.80, 186,791,465.70 and 79,289,986.20

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Solution

The fourth proportional to 124,527,643.80, 186,791,465.70 and 79,289,986.20 is: 118,934,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,527,643.80 : 186,791,465.70 = 79,289,986.20 : x
  2. Step 2: Convert to fraction form
    124,527,643.80/186,791,465.70 = 79,289,986.20/x
  3. Step 3: Cross multiply
    124,527,643.80x = 186,791,465.70 × 79,289,986.20
  4. Step 4: Simplify right side
    124,527,643.80x = 14,810,692,737,630,772
  5. Step 5: Solve for x
    x = 14,810,692,737,630,772/124,527,643.80
  6. Step 6: Final answer
    x = 118,934,979.30

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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.