Home / 12,381,661.60-18,572,492.40-9,358,352.80

Finding the Fourth Proportional to 12,381,661.60, 18,572,492.40 and 9,358,352.80

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Solution

The fourth proportional to 12,381,661.60, 18,572,492.40 and 9,358,352.80 is: 14,037,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,661.60 : 18,572,492.40 = 9,358,352.80 : x
  2. Step 2: Convert to fraction form
    12,381,661.60/18,572,492.40 = 9,358,352.80/x
  3. Step 3: Cross multiply
    12,381,661.60x = 18,572,492.40 × 9,358,352.80
  4. Step 4: Simplify right side
    12,381,661.60x = 173,807,936,254,518.72
  5. Step 5: Solve for x
    x = 173,807,936,254,518.72/12,381,661.60
  6. Step 6: Final answer
    x = 14,037,529.20

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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.