Home / 15,642,605,741.81-21,587,205,047.25-8,506,436,919.32

Finding the Fourth Proportional to 15,642,605,741.81, 21,587,205,047.25 and 8,506,436,919.32

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Solution

The fourth proportional to 15,642,605,741.81, 21,587,205,047.25 and 8,506,436,919.32 is: 11,739,105,429.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642,605,741.81 : 21,587,205,047.25 = 8,506,436,919.32 : x
  2. Step 2: Convert to fraction form
    15,642,605,741.81/21,587,205,047.25 = 8,506,436,919.32/x
  3. Step 3: Cross multiply
    15,642,605,741.81x = 21,587,205,047.25 × 8,506,436,919.32
  4. Step 4: Simplify right side
    15,642,605,741.81x = 183,630,197,998,858,436,608
  5. Step 5: Solve for x
    x = 183,630,197,998,858,436,608/15,642,605,741.81
  6. Step 6: Final answer
    x = 11,739,105,429.73

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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.