Home / 920,592,742.50-1,381,433,920.97-338,735,595.74

Finding the Fourth Proportional to 920,592,742.50, 1,381,433,920.97 and 338,735,595.74

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Solution

The fourth proportional to 920,592,742.50, 1,381,433,920.97 and 338,735,595.74 is: 508,303,857.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,592,742.50 : 1,381,433,920.97 = 338,735,595.74 : x
  2. Step 2: Convert to fraction form
    920,592,742.50/1,381,433,920.97 = 338,735,595.74/x
  3. Step 3: Cross multiply
    920,592,742.50x = 1,381,433,920.97 × 338,735,595.74
  4. Step 4: Simplify right side
    920,592,742.50x = 467,940,842,186,616,192
  5. Step 5: Solve for x
    x = 467,940,842,186,616,192/920,592,742.50
  6. Step 6: Final answer
    x = 508,303,857.49

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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.