Home / 13,590,458.66-18,754,836-7,478,887.16

Finding the Fourth Proportional to 13,590,458.66, 18,754,836 and 7,478,887.16

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Solution

The fourth proportional to 13,590,458.66, 18,754,836 and 7,478,887.16 is: 10,320,865.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,458.66 : 18,754,836 = 7,478,887.16 : x
  2. Step 2: Convert to fraction form
    13,590,458.66/18,754,836 = 7,478,887.16/x
  3. Step 3: Cross multiply
    13,590,458.66x = 18,754,836 × 7,478,887.16
  4. Step 4: Simplify right side
    13,590,458.66x = 140,265,302,148,305.77
  5. Step 5: Solve for x
    x = 140,265,302,148,305.77/13,590,458.66
  6. Step 6: Final answer
    x = 10,320,865.96

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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.