Home / 15,642,606,478.88-21,587,206,065.12-8,506,437,657.92

Finding the Fourth Proportional to 15,642,606,478.88, 21,587,206,065.12 and 8,506,437,657.92

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Solution

The fourth proportional to 15,642,606,478.88, 21,587,206,065.12 and 8,506,437,657.92 is: 11,739,106,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642,606,478.88 : 21,587,206,065.12 = 8,506,437,657.92 : x
  2. Step 2: Convert to fraction form
    15,642,606,478.88/21,587,206,065.12 = 8,506,437,657.92/x
  3. Step 3: Cross multiply
    15,642,606,478.88x = 21,587,206,065.12 × 8,506,437,657.92
  4. Step 4: Simplify right side
    15,642,606,478.88x = 183,630,222,601,615,769,600
  5. Step 5: Solve for x
    x = 183,630,222,601,615,769,600/15,642,606,478.88
  6. Step 6: Final answer
    x = 11,739,106,449.40

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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.