Home / 13,319,888.32-18,381,503.82-7,208,317.36

Finding the Fourth Proportional to 13,319,888.32, 18,381,503.82 and 7,208,317.36

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Solution

The fourth proportional to 13,319,888.32, 18,381,503.82 and 7,208,317.36 is: 9,947,509.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,888.32 : 18,381,503.82 = 7,208,317.36 : x
  2. Step 2: Convert to fraction form
    13,319,888.32/18,381,503.82 = 7,208,317.36/x
  3. Step 3: Cross multiply
    13,319,888.32x = 18,381,503.82 × 7,208,317.36
  4. Step 4: Simplify right side
    13,319,888.32x = 132,499,713,088,612.33
  5. Step 5: Solve for x
    x = 132,499,713,088,612.33/13,319,888.32
  6. Step 6: Final answer
    x = 9,947,509.31

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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.