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Finding the Fourth Proportional to 473,886,146.80, 710,829,220.20 and 215,605,820.80

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Solution

The fourth proportional to 473,886,146.80, 710,829,220.20 and 215,605,820.80 is: 323,408,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,886,146.80 : 710,829,220.20 = 215,605,820.80 : x
  2. Step 2: Convert to fraction form
    473,886,146.80/710,829,220.20 = 215,605,820.80/x
  3. Step 3: Cross multiply
    473,886,146.80x = 710,829,220.20 × 215,605,820.80
  4. Step 4: Simplify right side
    473,886,146.80x = 153,258,917,469,844,960
  5. Step 5: Solve for x
    x = 153,258,917,469,844,960/473,886,146.80
  6. Step 6: Final answer
    x = 323,408,731.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.