Home / 356,039,511.40-534,059,267.10-218,290,004.20

Finding the Fourth Proportional to 356,039,511.40, 534,059,267.10 and 218,290,004.20

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Solution

The fourth proportional to 356,039,511.40, 534,059,267.10 and 218,290,004.20 is: 327,435,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,039,511.40 : 534,059,267.10 = 218,290,004.20 : x
  2. Step 2: Convert to fraction form
    356,039,511.40/534,059,267.10 = 218,290,004.20/x
  3. Step 3: Cross multiply
    356,039,511.40x = 534,059,267.10 × 218,290,004.20
  4. Step 4: Simplify right side
    356,039,511.40x = 116,579,799,658,307,920
  5. Step 5: Solve for x
    x = 116,579,799,658,307,920/356,039,511.40
  6. Step 6: Final answer
    x = 327,435,006.30

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1.5x scale

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.