Home / 631,506,348.79-871,381,945.86-363,530,381.89

Finding the Fourth Proportional to 631,506,348.79, 871,381,945.86 and 363,530,381.89

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Solution

The fourth proportional to 631,506,348.79, 871,381,945.86 and 363,530,381.89 is: 501,616,194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,506,348.79 : 871,381,945.86 = 363,530,381.89 : x
  2. Step 2: Convert to fraction form
    631,506,348.79/871,381,945.86 = 363,530,381.89/x
  3. Step 3: Cross multiply
    631,506,348.79x = 871,381,945.86 × 363,530,381.89
  4. Step 4: Simplify right side
    631,506,348.79x = 316,773,811,550,537,088
  5. Step 5: Solve for x
    x = 316,773,811,550,537,088/631,506,348.79
  6. Step 6: Final answer
    x = 501,616,194.61

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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.