Home / 806,078,480,858.40-1,209,287,534,695.80-261,484,455,472.95

Finding the Fourth Proportional to 806,078,480,858.40, 1,209,287,534,695.80 and 261,484,455,472.95

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Solution

The fourth proportional to 806,078,480,858.40, 1,209,287,534,695.80 and 261,484,455,472.95 is: 392,281,769,119.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,078,480,858.40 : 1,209,287,534,695.80 = 261,484,455,472.95 : x
  2. Step 2: Convert to fraction form
    806,078,480,858.40/1,209,287,534,695.80 = 261,484,455,472.95/x
  3. Step 3: Cross multiply
    806,078,480,858.40x = 1,209,287,534,695.80 × 261,484,455,472.95
  4. Step 4: Simplify right side
    806,078,480,858.40x = 316,209,892,520,157,419,405,312
  5. Step 5: Solve for x
    x = 316,209,892,520,157,419,405,312/806,078,480,858.40
  6. Step 6: Final answer
    x = 392,281,769,119.33

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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.