Home / 31,895,998.20-47,879,426.70-19,779,143.40

Finding the Fourth Proportional to 31,895,998.20, 47,879,426.70 and 19,779,143.40

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Solution

The fourth proportional to 31,895,998.20, 47,879,426.70 and 19,779,143.40 is: 29,690,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,895,998.20 : 47,879,426.70 = 19,779,143.40 : x
  2. Step 2: Convert to fraction form
    31,895,998.20/47,879,426.70 = 19,779,143.40/x
  3. Step 3: Cross multiply
    31,895,998.20x = 47,879,426.70 × 19,779,143.40
  4. Step 4: Simplify right side
    31,895,998.20x = 947,014,046,609,088.75
  5. Step 5: Solve for x
    x = 947,014,046,609,088.75/31,895,998.20
  6. Step 6: Final answer
    x = 29,690,685.35

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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.