Home / 90,989,412.80-136,484,119.20-26,295,328.40

Finding the Fourth Proportional to 90,989,412.80, 136,484,119.20 and 26,295,328.40

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Solution

The fourth proportional to 90,989,412.80, 136,484,119.20 and 26,295,328.40 is: 39,442,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,989,412.80 : 136,484,119.20 = 26,295,328.40 : x
  2. Step 2: Convert to fraction form
    90,989,412.80/136,484,119.20 = 26,295,328.40/x
  3. Step 3: Cross multiply
    90,989,412.80x = 136,484,119.20 × 26,295,328.40
  4. Step 4: Simplify right side
    90,989,412.80x = 3,588,894,735,748,745
  5. Step 5: Solve for x
    x = 3,588,894,735,748,745/90,989,412.80
  6. Step 6: Final answer
    x = 39,442,992.60

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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.