Home / 421,402,488,679.02-581,435,762,939.14-238,499,590,255.68

Finding the Fourth Proportional to 421,402,488,679.02, 581,435,762,939.14 and 238,499,590,255.68

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Solution

The fourth proportional to 421,402,488,679.02, 581,435,762,939.14 and 238,499,590,255.68 is: 329,073,023,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,402,488,679.02 : 581,435,762,939.14 = 238,499,590,255.68 : x
  2. Step 2: Convert to fraction form
    421,402,488,679.02/581,435,762,939.14 = 238,499,590,255.68/x
  3. Step 3: Cross multiply
    421,402,488,679.02x = 581,435,762,939.14 × 238,499,590,255.68
  4. Step 4: Simplify right side
    421,402,488,679.02x = 138,672,191,220,983,586,095,104
  5. Step 5: Solve for x
    x = 138,672,191,220,983,586,095,104/421,402,488,679.02
  6. Step 6: Final answer
    x = 329,073,023,881.95

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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.