Home / 9,131,129.12-12,601,162.16-5,210,807.19

Finding the Fourth Proportional to 9,131,129.12, 12,601,162.16 and 5,210,807.19

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Solution

The fourth proportional to 9,131,129.12, 12,601,162.16 and 5,210,807.19 is: 7,191,030.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131,129.12 : 12,601,162.16 = 5,210,807.19 : x
  2. Step 2: Convert to fraction form
    9,131,129.12/12,601,162.16 = 5,210,807.19/x
  3. Step 3: Cross multiply
    9,131,129.12x = 12,601,162.16 × 5,210,807.19
  4. Step 4: Simplify right side
    9,131,129.12x = 65,662,226,360,030.45
  5. Step 5: Solve for x
    x = 65,662,226,360,030.45/9,131,129.12
  6. Step 6: Final answer
    x = 7,191,030.32

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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.