Home / 13,113,321.60-19,648,987.20-8,312,419.20

Finding the Fourth Proportional to 13,113,321.60, 19,648,987.20 and 8,312,419.20

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Solution

The fourth proportional to 13,113,321.60, 19,648,987.20 and 8,312,419.20 is: 12,455,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113,321.60 : 19,648,987.20 = 8,312,419.20 : x
  2. Step 2: Convert to fraction form
    13,113,321.60/19,648,987.20 = 8,312,419.20/x
  3. Step 3: Cross multiply
    13,113,321.60x = 19,648,987.20 × 8,312,419.20
  4. Step 4: Simplify right side
    13,113,321.60x = 163,330,618,461,834.25
  5. Step 5: Solve for x
    x = 163,330,618,461,834.25/13,113,321.60
  6. Step 6: Final answer
    x = 12,455,320.13

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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.