Home / 124,416,085.40-186,624,128.10-85,996,424.60

Finding the Fourth Proportional to 124,416,085.40, 186,624,128.10 and 85,996,424.60

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Solution

The fourth proportional to 124,416,085.40, 186,624,128.10 and 85,996,424.60 is: 128,994,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,416,085.40 : 186,624,128.10 = 85,996,424.60 : x
  2. Step 2: Convert to fraction form
    124,416,085.40/186,624,128.10 = 85,996,424.60/x
  3. Step 3: Cross multiply
    124,416,085.40x = 186,624,128.10 × 85,996,424.60
  4. Step 4: Simplify right side
    124,416,085.40x = 16,049,007,760,692,390
  5. Step 5: Solve for x
    x = 16,049,007,760,692,390/124,416,085.40
  6. Step 6: Final answer
    x = 128,994,636.90

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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.