Home / 9,121,395.65-12,587,526.98-4,991,427.67

Finding the Fourth Proportional to 9,121,395.65, 12,587,526.98 and 4,991,427.67

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Solution

The fourth proportional to 9,121,395.65, 12,587,526.98 and 4,991,427.67 is: 6,888,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121,395.65 : 12,587,526.98 = 4,991,427.67 : x
  2. Step 2: Convert to fraction form
    9,121,395.65/12,587,526.98 = 4,991,427.67/x
  3. Step 3: Cross multiply
    9,121,395.65x = 12,587,526.98 × 4,991,427.67
  4. Step 4: Simplify right side
    9,121,395.65x = 62,829,730,401,905.91
  5. Step 5: Solve for x
    x = 62,829,730,401,905.91/9,121,395.65
  6. Step 6: Final answer
    x = 6,888,170.72

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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.