Home / 807,434,281.70-1,211,151,421.19-194,018,507.45

Finding the Fourth Proportional to 807,434,281.70, 1,211,151,421.19 and 194,018,507.45

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Solution

The fourth proportional to 807,434,281.70, 1,211,151,421.19 and 194,018,507.45 is: 291,027,760.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,434,281.70 : 1,211,151,421.19 = 194,018,507.45 : x
  2. Step 2: Convert to fraction form
    807,434,281.70/1,211,151,421.19 = 194,018,507.45/x
  3. Step 3: Cross multiply
    807,434,281.70x = 1,211,151,421.19 × 194,018,507.45
  4. Step 4: Simplify right side
    807,434,281.70x = 234,985,791,035,230,112
  5. Step 5: Solve for x
    x = 234,985,791,035,230,112/807,434,281.70
  6. Step 6: Final answer
    x = 291,027,760.85

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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.