Home / 421,402,488,675.12-581,435,762,933.74-238,499,590,251.77

Finding the Fourth Proportional to 421,402,488,675.12, 581,435,762,933.74 and 238,499,590,251.77

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Solution

The fourth proportional to 421,402,488,675.12, 581,435,762,933.74 and 238,499,590,251.77 is: 329,073,023,876.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,402,488,675.12 : 581,435,762,933.74 = 238,499,590,251.77 : x
  2. Step 2: Convert to fraction form
    421,402,488,675.12/581,435,762,933.74 = 238,499,590,251.77/x
  3. Step 3: Cross multiply
    421,402,488,675.12x = 581,435,762,933.74 × 238,499,590,251.77
  4. Step 4: Simplify right side
    421,402,488,675.12x = 138,672,191,217,422,252,900,352
  5. Step 5: Solve for x
    x = 138,672,191,217,422,252,900,352/421,402,488,675.12
  6. Step 6: Final answer
    x = 329,073,023,876.54

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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.