Home / 121,528,300.20-182,376,431.10-87,478,751.40

Finding the Fourth Proportional to 121,528,300.20, 182,376,431.10 and 87,478,751.40

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Solution

The fourth proportional to 121,528,300.20, 182,376,431.10 and 87,478,751.40 is: 131,278,578.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,528,300.20 : 182,376,431.10 = 87,478,751.40 : x
  2. Step 2: Convert to fraction form
    121,528,300.20/182,376,431.10 = 87,478,751.40/x
  3. Step 3: Cross multiply
    121,528,300.20x = 182,376,431.10 × 87,478,751.40
  4. Step 4: Simplify right side
    121,528,300.20x = 15,954,062,477,416,130
  5. Step 5: Solve for x
    x = 15,954,062,477,416,130/121,528,300.20
  6. Step 6: Final answer
    x = 131,278,578.33

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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.