Home / 85,464,281.52-128,106,842.76-31,577,223.60

Finding the Fourth Proportional to 85,464,281.52, 128,106,842.76 and 31,577,223.60

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Solution

The fourth proportional to 85,464,281.52, 128,106,842.76 and 31,577,223.60 is: 47,332,737.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,464,281.52 : 128,106,842.76 = 31,577,223.60 : x
  2. Step 2: Convert to fraction form
    85,464,281.52/128,106,842.76 = 31,577,223.60/x
  3. Step 3: Cross multiply
    85,464,281.52x = 128,106,842.76 × 31,577,223.60
  4. Step 4: Simplify right side
    85,464,281.52x = 4,045,258,418,522,561.50
  5. Step 5: Solve for x
    x = 4,045,258,418,522,561.50/85,464,281.52
  6. Step 6: Final answer
    x = 47,332,737.68

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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.