Home / 65,610,080.80-98,415,121.20-20,165,970.40

Finding the Fourth Proportional to 65,610,080.80, 98,415,121.20 and 20,165,970.40

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Solution

The fourth proportional to 65,610,080.80, 98,415,121.20 and 20,165,970.40 is: 30,248,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,610,080.80 : 98,415,121.20 = 20,165,970.40 : x
  2. Step 2: Convert to fraction form
    65,610,080.80/98,415,121.20 = 20,165,970.40/x
  3. Step 3: Cross multiply
    65,610,080.80x = 98,415,121.20 × 20,165,970.40
  4. Step 4: Simplify right side
    65,610,080.80x = 1,984,636,421,031,612.50
  5. Step 5: Solve for x
    x = 1,984,636,421,031,612.50/65,610,080.80
  6. Step 6: Final answer
    x = 30,248,955.60

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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.