Home / 13,590,438.66-18,754,808.40-7,478,867.16

Finding the Fourth Proportional to 13,590,438.66, 18,754,808.40 and 7,478,867.16

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Solution

The fourth proportional to 13,590,438.66, 18,754,808.40 and 7,478,867.16 is: 10,320,838.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,438.66 : 18,754,808.40 = 7,478,867.16 : x
  2. Step 2: Convert to fraction form
    13,590,438.66/18,754,808.40 = 7,478,867.16/x
  3. Step 3: Cross multiply
    13,590,438.66x = 18,754,808.40 × 7,478,867.16
  4. Step 4: Simplify right side
    13,590,438.66x = 140,264,720,634,852.14
  5. Step 5: Solve for x
    x = 140,264,720,634,852.14/13,590,438.66
  6. Step 6: Final answer
    x = 10,320,838.36

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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.