Home / 30,240,970.20-45,367,360.20-12,042,068.40

Finding the Fourth Proportional to 30,240,970.20, 45,367,360.20 and 12,042,068.40

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Solution

The fourth proportional to 30,240,970.20, 45,367,360.20 and 12,042,068.40 is: 18,065,453.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240,970.20 : 45,367,360.20 = 12,042,068.40 : x
  2. Step 2: Convert to fraction form
    30,240,970.20/45,367,360.20 = 12,042,068.40/x
  3. Step 3: Cross multiply
    30,240,970.20x = 45,367,360.20 × 12,042,068.40
  4. Step 4: Simplify right side
    30,240,970.20x = 546,316,854,655,837.75
  5. Step 5: Solve for x
    x = 546,316,854,655,837.75/30,240,970.20
  6. Step 6: Final answer
    x = 18,065,453.95

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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.