Home / 426,031,462.72-639,065,428.80-167,302,665.64

Finding the Fourth Proportional to 426,031,462.72, 639,065,428.80 and 167,302,665.64

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Solution

The fourth proportional to 426,031,462.72, 639,065,428.80 and 167,302,665.64 is: 250,961,159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,031,462.72 : 639,065,428.80 = 167,302,665.64 : x
  2. Step 2: Convert to fraction form
    426,031,462.72/639,065,428.80 = 167,302,665.64/x
  3. Step 3: Cross multiply
    426,031,462.72x = 639,065,428.80 × 167,302,665.64
  4. Step 4: Simplify right side
    426,031,462.72x = 106,917,349,756,609,616
  5. Step 5: Solve for x
    x = 106,917,349,756,609,616/426,031,462.72
  6. Step 6: Final answer
    x = 250,961,159.24

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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.