Home / 15,642,605,739.05-21,587,205,043.45-8,506,436,916.56

Finding the Fourth Proportional to 15,642,605,739.05, 21,587,205,043.45 and 8,506,436,916.56

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Solution

The fourth proportional to 15,642,605,739.05, 21,587,205,043.45 and 8,506,436,916.56 is: 11,739,105,425.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642,605,739.05 : 21,587,205,043.45 = 8,506,436,916.56 : x
  2. Step 2: Convert to fraction form
    15,642,605,739.05/21,587,205,043.45 = 8,506,436,916.56/x
  3. Step 3: Cross multiply
    15,642,605,739.05x = 21,587,205,043.45 × 8,506,436,916.56
  4. Step 4: Simplify right side
    15,642,605,739.05x = 183,630,197,906,873,810,944
  5. Step 5: Solve for x
    x = 183,630,197,906,873,810,944/15,642,605,739.05
  6. Step 6: Final answer
    x = 11,739,105,425.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.