Home / 13,586,901.12-18,749,539.80-7,475,330.16

Finding the Fourth Proportional to 13,586,901.12, 18,749,539.80 and 7,475,330.16

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Solution

The fourth proportional to 13,586,901.12, 18,749,539.80 and 7,475,330.16 is: 10,315,744.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586,901.12 : 18,749,539.80 = 7,475,330.16 : x
  2. Step 2: Convert to fraction form
    13,586,901.12/18,749,539.80 = 7,475,330.16/x
  3. Step 3: Cross multiply
    13,586,901.12x = 18,749,539.80 × 7,475,330.16
  4. Step 4: Simplify right side
    13,586,901.12x = 140,159,000,353,060.38
  5. Step 5: Solve for x
    x = 140,159,000,353,060.38/13,586,901.12
  6. Step 6: Final answer
    x = 10,315,744.49

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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.