Home / 79,748,458.80-119,622,688.20-19,164,184.80

Finding the Fourth Proportional to 79,748,458.80, 119,622,688.20 and 19,164,184.80

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Solution

The fourth proportional to 79,748,458.80, 119,622,688.20 and 19,164,184.80 is: 28,746,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,748,458.80 : 119,622,688.20 = 19,164,184.80 : x
  2. Step 2: Convert to fraction form
    79,748,458.80/119,622,688.20 = 19,164,184.80/x
  3. Step 3: Cross multiply
    79,748,458.80x = 119,622,688.20 × 19,164,184.80
  4. Step 4: Simplify right side
    79,748,458.80x = 2,292,471,302,937,579.50
  5. Step 5: Solve for x
    x = 2,292,471,302,937,579.50/79,748,458.80
  6. Step 6: Final answer
    x = 28,746,277.20

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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.