Home / 47,990,429.10-71,985,643.65-21,064,085.10

Finding the Fourth Proportional to 47,990,429.10, 71,985,643.65 and 21,064,085.10

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Solution

The fourth proportional to 47,990,429.10, 71,985,643.65 and 21,064,085.10 is: 31,596,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,990,429.10 : 71,985,643.65 = 21,064,085.10 : x
  2. Step 2: Convert to fraction form
    47,990,429.10/71,985,643.65 = 21,064,085.10/x
  3. Step 3: Cross multiply
    47,990,429.10x = 71,985,643.65 × 21,064,085.10
  4. Step 4: Simplify right side
    47,990,429.10x = 1,516,311,723,821,874.75
  5. Step 5: Solve for x
    x = 1,516,311,723,821,874.75/47,990,429.10
  6. Step 6: Final answer
    x = 31,596,127.65

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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.