Home / 12,302,421.60-18,453,632.40-8,712,242.40

Finding the Fourth Proportional to 12,302,421.60, 18,453,632.40 and 8,712,242.40

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Solution

The fourth proportional to 12,302,421.60, 18,453,632.40 and 8,712,242.40 is: 13,068,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302,421.60 : 18,453,632.40 = 8,712,242.40 : x
  2. Step 2: Convert to fraction form
    12,302,421.60/18,453,632.40 = 8,712,242.40/x
  3. Step 3: Cross multiply
    12,302,421.60x = 18,453,632.40 × 8,712,242.40
  4. Step 4: Simplify right side
    12,302,421.60x = 160,772,518,629,293.75
  5. Step 5: Solve for x
    x = 160,772,518,629,293.75/12,302,421.60
  6. Step 6: Final answer
    x = 13,068,363.60

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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.