Home / 72,626,811.42-108,875,716.05-28,300,833.74

Finding the Fourth Proportional to 72,626,811.42, 108,875,716.05 and 28,300,833.74

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Solution

The fourth proportional to 72,626,811.42, 108,875,716.05 and 28,300,833.74 is: 42,426,116.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,626,811.42 : 108,875,716.05 = 28,300,833.74 : x
  2. Step 2: Convert to fraction form
    72,626,811.42/108,875,716.05 = 28,300,833.74/x
  3. Step 3: Cross multiply
    72,626,811.42x = 108,875,716.05 × 28,300,833.74
  4. Step 4: Simplify right side
    72,626,811.42x = 3,081,273,537,710,121
  5. Step 5: Solve for x
    x = 3,081,273,537,710,121/72,626,811.42
  6. Step 6: Final answer
    x = 42,426,116.16

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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.