Home / 285,452,557.60-428,178,836.40-149,403,661.60

Finding the Fourth Proportional to 285,452,557.60, 428,178,836.40 and 149,403,661.60

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Solution

The fourth proportional to 285,452,557.60, 428,178,836.40 and 149,403,661.60 is: 224,105,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,452,557.60 : 428,178,836.40 = 149,403,661.60 : x
  2. Step 2: Convert to fraction form
    285,452,557.60/428,178,836.40 = 149,403,661.60/x
  3. Step 3: Cross multiply
    285,452,557.60x = 428,178,836.40 × 149,403,661.60
  4. Step 4: Simplify right side
    285,452,557.60x = 63,971,485,977,787,360
  5. Step 5: Solve for x
    x = 63,971,485,977,787,360/285,452,557.60
  6. Step 6: Final answer
    x = 224,105,492.40

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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.