Home / 13,319,887.32-18,381,502.44-7,208,316.36

Finding the Fourth Proportional to 13,319,887.32, 18,381,502.44 and 7,208,316.36

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Solution

The fourth proportional to 13,319,887.32, 18,381,502.44 and 7,208,316.36 is: 9,947,507.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,887.32 : 18,381,502.44 = 7,208,316.36 : x
  2. Step 2: Convert to fraction form
    13,319,887.32/18,381,502.44 = 7,208,316.36/x
  3. Step 3: Cross multiply
    13,319,887.32x = 18,381,502.44 × 7,208,316.36
  4. Step 4: Simplify right side
    13,319,887.32x = 132,499,684,759,631.94
  5. Step 5: Solve for x
    x = 132,499,684,759,631.94/13,319,887.32
  6. Step 6: Final answer
    x = 9,947,507.93

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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.