Home / 103,616,002.90-155,424,004.35-31,803,087.70

Finding the Fourth Proportional to 103,616,002.90, 155,424,004.35 and 31,803,087.70

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Solution

The fourth proportional to 103,616,002.90, 155,424,004.35 and 31,803,087.70 is: 47,704,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,616,002.90 : 155,424,004.35 = 31,803,087.70 : x
  2. Step 2: Convert to fraction form
    103,616,002.90/155,424,004.35 = 31,803,087.70/x
  3. Step 3: Cross multiply
    103,616,002.90x = 155,424,004.35 × 31,803,087.70
  4. Step 4: Simplify right side
    103,616,002.90x = 4,942,963,241,028,231
  5. Step 5: Solve for x
    x = 4,942,963,241,028,231/103,616,002.90
  6. Step 6: Final answer
    x = 47,704,631.55

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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.