Home / 631,810,442.70-871,942,570.83-353,377,699.02

Finding the Fourth Proportional to 631,810,442.70, 871,942,570.83 and 353,377,699.02

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Solution

The fourth proportional to 631,810,442.70, 871,942,570.83 and 353,377,699.02 is: 487,685,923.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,810,442.70 : 871,942,570.83 = 353,377,699.02 : x
  2. Step 2: Convert to fraction form
    631,810,442.70/871,942,570.83 = 353,377,699.02/x
  3. Step 3: Cross multiply
    631,810,442.70x = 871,942,570.83 × 353,377,699.02
  4. Step 4: Simplify right side
    631,810,442.70x = 308,125,059,357,488,768
  5. Step 5: Solve for x
    x = 308,125,059,357,488,768/631,810,442.70
  6. Step 6: Final answer
    x = 487,685,923.71

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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.