Home / 15,348,158.76-21,186,490.50-10,120,336.68

Finding the Fourth Proportional to 15,348,158.76, 21,186,490.50 and 10,120,336.68

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Solution

The fourth proportional to 15,348,158.76, 21,186,490.50 and 10,120,336.68 is: 13,970,041.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348,158.76 : 21,186,490.50 = 10,120,336.68 : x
  2. Step 2: Convert to fraction form
    15,348,158.76/21,186,490.50 = 10,120,336.68/x
  3. Step 3: Cross multiply
    15,348,158.76x = 21,186,490.50 × 10,120,336.68
  4. Step 4: Simplify right side
    15,348,158.76x = 214,414,416,927,621.53
  5. Step 5: Solve for x
    x = 214,414,416,927,621.53/15,348,158.76
  6. Step 6: Final answer
    x = 13,970,041.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.