Home / 311,943,411.60-430,495,358.04-172,714,169.04

Finding the Fourth Proportional to 311,943,411.60, 430,495,358.04 and 172,714,169.04

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Solution

The fourth proportional to 311,943,411.60, 430,495,358.04 and 172,714,169.04 is: 238,353,000.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,943,411.60 : 430,495,358.04 = 172,714,169.04 : x
  2. Step 2: Convert to fraction form
    311,943,411.60/430,495,358.04 = 172,714,169.04/x
  3. Step 3: Cross multiply
    311,943,411.60x = 430,495,358.04 × 172,714,169.04
  4. Step 4: Simplify right side
    311,943,411.60x = 74,352,648,039,455,888
  5. Step 5: Solve for x
    x = 74,352,648,039,455,888/311,943,411.60
  6. Step 6: Final answer
    x = 238,353,000.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.