Home / 21,387,639.60-32,081,459.40-12,884,583.60

Finding the Fourth Proportional to 21,387,639.60, 32,081,459.40 and 12,884,583.60

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Solution

The fourth proportional to 21,387,639.60, 32,081,459.40 and 12,884,583.60 is: 19,326,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,639.60 : 32,081,459.40 = 12,884,583.60 : x
  2. Step 2: Convert to fraction form
    21,387,639.60/32,081,459.40 = 12,884,583.60/x
  3. Step 3: Cross multiply
    21,387,639.60x = 32,081,459.40 × 12,884,583.60
  4. Step 4: Simplify right side
    21,387,639.60x = 413,356,245,649,305.81
  5. Step 5: Solve for x
    x = 413,356,245,649,305.81/21,387,639.60
  6. Step 6: Final answer
    x = 19,326,875.40

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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.