Home / 12,921,294.40-19,381,941.60-12,832,820.80

Finding the Fourth Proportional to 12,921,294.40, 19,381,941.60 and 12,832,820.80

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Solution

The fourth proportional to 12,921,294.40, 19,381,941.60 and 12,832,820.80 is: 19,249,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,294.40 : 19,381,941.60 = 12,832,820.80 : x
  2. Step 2: Convert to fraction form
    12,921,294.40/19,381,941.60 = 12,832,820.80/x
  3. Step 3: Cross multiply
    12,921,294.40x = 19,381,941.60 × 12,832,820.80
  4. Step 4: Simplify right side
    12,921,294.40x = 248,724,983,308,865.31
  5. Step 5: Solve for x
    x = 248,724,983,308,865.31/12,921,294.40
  6. Step 6: Final answer
    x = 19,249,231.20

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1.5x scale

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.