Home / 289,588,602.20-434,382,903.30-207,534,111.80

Finding the Fourth Proportional to 289,588,602.20, 434,382,903.30 and 207,534,111.80

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Solution

The fourth proportional to 289,588,602.20, 434,382,903.30 and 207,534,111.80 is: 311,301,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,588,602.20 : 434,382,903.30 = 207,534,111.80 : x
  2. Step 2: Convert to fraction form
    289,588,602.20/434,382,903.30 = 207,534,111.80/x
  3. Step 3: Cross multiply
    289,588,602.20x = 434,382,903.30 × 207,534,111.80
  4. Step 4: Simplify right side
    289,588,602.20x = 90,149,270,017,470,800
  5. Step 5: Solve for x
    x = 90,149,270,017,470,800/289,588,602.20
  6. Step 6: Final answer
    x = 311,301,167.70

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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.