Home / 806,078,480,856.90-1,209,287,534,693.60-261,484,455,471.45

Finding the Fourth Proportional to 806,078,480,856.90, 1,209,287,534,693.60 and 261,484,455,471.45

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Solution

The fourth proportional to 806,078,480,856.90, 1,209,287,534,693.60 and 261,484,455,471.45 is: 392,281,769,117.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,078,480,856.90 : 1,209,287,534,693.60 = 261,484,455,471.45 : x
  2. Step 2: Convert to fraction form
    806,078,480,856.90/1,209,287,534,693.60 = 261,484,455,471.45/x
  3. Step 3: Cross multiply
    806,078,480,856.90x = 1,209,287,534,693.60 × 261,484,455,471.45
  4. Step 4: Simplify right side
    806,078,480,856.90x = 316,209,892,517,768,209,629,184
  5. Step 5: Solve for x
    x = 316,209,892,517,768,209,629,184/806,078,480,856.90
  6. Step 6: Final answer
    x = 392,281,769,117.10

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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.