Home / 129,310,699.20-193,966,048.80-115,280,656.80

Finding the Fourth Proportional to 129,310,699.20, 193,966,048.80 and 115,280,656.80

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Solution

The fourth proportional to 129,310,699.20, 193,966,048.80 and 115,280,656.80 is: 172,920,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,310,699.20 : 193,966,048.80 = 115,280,656.80 : x
  2. Step 2: Convert to fraction form
    129,310,699.20/193,966,048.80 = 115,280,656.80/x
  3. Step 3: Cross multiply
    129,310,699.20x = 193,966,048.80 × 115,280,656.80
  4. Step 4: Simplify right side
    129,310,699.20x = 22,360,533,502,564,852
  5. Step 5: Solve for x
    x = 22,360,533,502,564,852/129,310,699.20
  6. Step 6: Final answer
    x = 172,920,985.20

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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.