Home / 124,225,670.40-186,506,467.20-78,876,038.40

Finding the Fourth Proportional to 124,225,670.40, 186,506,467.20 and 78,876,038.40

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Solution

The fourth proportional to 124,225,670.40, 186,506,467.20 and 78,876,038.40 is: 118,420,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,225,670.40 : 186,506,467.20 = 78,876,038.40 : x
  2. Step 2: Convert to fraction form
    124,225,670.40/186,506,467.20 = 78,876,038.40/x
  3. Step 3: Cross multiply
    124,225,670.40x = 186,506,467.20 × 78,876,038.40
  4. Step 4: Simplify right side
    124,225,670.40x = 14,710,891,268,715,540
  5. Step 5: Solve for x
    x = 14,710,891,268,715,540/124,225,670.40
  6. Step 6: Final answer
    x = 118,420,703.40

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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.