Home / 25,920,130.40-38,880,195.60-8,875,138.40

Finding the Fourth Proportional to 25,920,130.40, 38,880,195.60 and 8,875,138.40

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Solution

The fourth proportional to 25,920,130.40, 38,880,195.60 and 8,875,138.40 is: 13,312,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920,130.40 : 38,880,195.60 = 8,875,138.40 : x
  2. Step 2: Convert to fraction form
    25,920,130.40/38,880,195.60 = 8,875,138.40/x
  3. Step 3: Cross multiply
    25,920,130.40x = 38,880,195.60 × 8,875,138.40
  4. Step 4: Simplify right side
    25,920,130.40x = 345,067,116,969,071.06
  5. Step 5: Solve for x
    x = 345,067,116,969,071.06/25,920,130.40
  6. Step 6: Final answer
    x = 13,312,707.60

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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.