Home / 103,589,661.60-155,384,492.40-99,166,672.80

Finding the Fourth Proportional to 103,589,661.60, 155,384,492.40 and 99,166,672.80

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Solution

The fourth proportional to 103,589,661.60, 155,384,492.40 and 99,166,672.80 is: 148,750,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,589,661.60 : 155,384,492.40 = 99,166,672.80 : x
  2. Step 2: Convert to fraction form
    103,589,661.60/155,384,492.40 = 99,166,672.80/x
  3. Step 3: Cross multiply
    103,589,661.60x = 155,384,492.40 × 99,166,672.80
  4. Step 4: Simplify right side
    103,589,661.60x = 15,408,963,116,024,886
  5. Step 5: Solve for x
    x = 15,408,963,116,024,886/103,589,661.60
  6. Step 6: Final answer
    x = 148,750,009.20

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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.