Home / 72,768,020.40-109,152,030.60-29,668,155.30

Finding the Fourth Proportional to 72,768,020.40, 109,152,030.60 and 29,668,155.30

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Solution

The fourth proportional to 72,768,020.40, 109,152,030.60 and 29,668,155.30 is: 44,502,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768,020.40 : 109,152,030.60 = 29,668,155.30 : x
  2. Step 2: Convert to fraction form
    72,768,020.40/109,152,030.60 = 29,668,155.30/x
  3. Step 3: Cross multiply
    72,768,020.40x = 109,152,030.60 × 29,668,155.30
  4. Step 4: Simplify right side
    72,768,020.40x = 3,238,339,395,151,152
  5. Step 5: Solve for x
    x = 3,238,339,395,151,152/72,768,020.40
  6. Step 6: Final answer
    x = 44,502,232.95

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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.