Home / 30,240,904.70-45,367,261.95-12,042,002.90

Finding the Fourth Proportional to 30,240,904.70, 45,367,261.95 and 12,042,002.90

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Solution

The fourth proportional to 30,240,904.70, 45,367,261.95 and 12,042,002.90 is: 18,065,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240,904.70 : 45,367,261.95 = 12,042,002.90 : x
  2. Step 2: Convert to fraction form
    30,240,904.70/45,367,261.95 = 12,042,002.90/x
  3. Step 3: Cross multiply
    30,240,904.70x = 45,367,261.95 × 12,042,002.90
  4. Step 4: Simplify right side
    30,240,904.70x = 546,312,699,966,959.69
  5. Step 5: Solve for x
    x = 546,312,699,966,959.69/30,240,904.70
  6. Step 6: Final answer
    x = 18,065,355.70

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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.