Home / 13,365,920.32-18,444,987.84-7,254,349.60

Finding the Fourth Proportional to 13,365,920.32, 18,444,987.84 and 7,254,349.60

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Solution

The fourth proportional to 13,365,920.32, 18,444,987.84 and 7,254,349.60 is: 10,011,012.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365,920.32 : 18,444,987.84 = 7,254,349.60 : x
  2. Step 2: Convert to fraction form
    13,365,920.32/18,444,987.84 = 7,254,349.60/x
  3. Step 3: Cross multiply
    13,365,920.32x = 18,444,987.84 × 7,254,349.60
  4. Step 4: Simplify right side
    13,365,920.32x = 133,806,390,159,108.86
  5. Step 5: Solve for x
    x = 133,806,390,159,108.86/13,365,920.32
  6. Step 6: Final answer
    x = 10,011,012.11

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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.