Home / 79,859,145.60-119,788,718.40-28,734,521.40

Finding the Fourth Proportional to 79,859,145.60, 119,788,718.40 and 28,734,521.40

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Solution

The fourth proportional to 79,859,145.60, 119,788,718.40 and 28,734,521.40 is: 43,101,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,859,145.60 : 119,788,718.40 = 28,734,521.40 : x
  2. Step 2: Convert to fraction form
    79,859,145.60/119,788,718.40 = 28,734,521.40/x
  3. Step 3: Cross multiply
    79,859,145.60x = 119,788,718.40 × 28,734,521.40
  4. Step 4: Simplify right side
    79,859,145.60x = 3,442,071,492,343,374
  5. Step 5: Solve for x
    x = 3,442,071,492,343,374/79,859,145.60
  6. Step 6: Final answer
    x = 43,101,782.10

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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.