Home / 21,283,749.60-31,925,624.40-12,773,695.20

Finding the Fourth Proportional to 21,283,749.60, 31,925,624.40 and 12,773,695.20

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Solution

The fourth proportional to 21,283,749.60, 31,925,624.40 and 12,773,695.20 is: 19,160,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283,749.60 : 31,925,624.40 = 12,773,695.20 : x
  2. Step 2: Convert to fraction form
    21,283,749.60/31,925,624.40 = 12,773,695.20/x
  3. Step 3: Cross multiply
    21,283,749.60x = 31,925,624.40 × 12,773,695.20
  4. Step 4: Simplify right side
    21,283,749.60x = 407,808,195,155,282.81
  5. Step 5: Solve for x
    x = 407,808,195,155,282.81/21,283,749.60
  6. Step 6: Final answer
    x = 19,160,542.80

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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.