Home / 421,402,488,679.01-581,435,762,939.13-238,499,590,255.67

Finding the Fourth Proportional to 421,402,488,679.01, 581,435,762,939.13 and 238,499,590,255.67

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Solution

The fourth proportional to 421,402,488,679.01, 581,435,762,939.13 and 238,499,590,255.67 is: 329,073,023,881.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,402,488,679.01 : 581,435,762,939.13 = 238,499,590,255.67 : x
  2. Step 2: Convert to fraction form
    421,402,488,679.01/581,435,762,939.13 = 238,499,590,255.67/x
  3. Step 3: Cross multiply
    421,402,488,679.01x = 581,435,762,939.13 × 238,499,590,255.67
  4. Step 4: Simplify right side
    421,402,488,679.01x = 138,672,191,220,975,398,813,696
  5. Step 5: Solve for x
    x = 138,672,191,220,975,398,813,696/421,402,488,679.01
  6. Step 6: Final answer
    x = 329,073,023,881.94

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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.