Home / 212,488,818.90-293,231,589.36-118,406,931.21

Finding the Fourth Proportional to 212,488,818.90, 293,231,589.36 and 118,406,931.21

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Solution

The fourth proportional to 212,488,818.90, 293,231,589.36 and 118,406,931.21 is: 163,399,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,488,818.90 : 293,231,589.36 = 118,406,931.21 : x
  2. Step 2: Convert to fraction form
    212,488,818.90/293,231,589.36 = 118,406,931.21/x
  3. Step 3: Cross multiply
    212,488,818.90x = 293,231,589.36 × 118,406,931.21
  4. Step 4: Simplify right side
    212,488,818.90x = 34,720,652,629,948,488
  5. Step 5: Solve for x
    x = 34,720,652,629,948,488/212,488,818.90
  6. Step 6: Final answer
    x = 163,399,904.10

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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.