Home / 15,408,079,162.20-21,263,152,357.40-9,386,582,749.11

Finding the Fourth Proportional to 15,408,079,162.20, 21,263,152,357.40 and 9,386,582,749.11

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Solution

The fourth proportional to 15,408,079,162.20, 21,263,152,357.40 and 9,386,582,749.11 is: 12,953,486,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408,079,162.20 : 21,263,152,357.40 = 9,386,582,749.11 : x
  2. Step 2: Convert to fraction form
    15,408,079,162.20/21,263,152,357.40 = 9,386,582,749.11/x
  3. Step 3: Cross multiply
    15,408,079,162.20x = 21,263,152,357.40 × 9,386,582,749.11
  4. Step 4: Simplify right side
    15,408,079,162.20x = 199,588,339,109,621,563,392
  5. Step 5: Solve for x
    x = 199,588,339,109,621,563,392/15,408,079,162.20
  6. Step 6: Final answer
    x = 12,953,486,090.55

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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.