Home / 85,974,950.40-128,962,425.60-57,277,136.40

Finding the Fourth Proportional to 85,974,950.40, 128,962,425.60 and 57,277,136.40

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Solution

The fourth proportional to 85,974,950.40, 128,962,425.60 and 57,277,136.40 is: 85,915,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,974,950.40 : 128,962,425.60 = 57,277,136.40 : x
  2. Step 2: Convert to fraction form
    85,974,950.40/128,962,425.60 = 57,277,136.40/x
  3. Step 3: Cross multiply
    85,974,950.40x = 128,962,425.60 × 57,277,136.40
  4. Step 4: Simplify right side
    85,974,950.40x = 7,386,598,441,566,051
  5. Step 5: Solve for x
    x = 7,386,598,441,566,051/85,974,950.40
  6. Step 6: Final answer
    x = 85,915,704.60

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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.