Home / 15,886,468.71-21,854,530.89-13,917,479.67

Finding the Fourth Proportional to 15,886,468.71, 21,854,530.89 and 13,917,479.67

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Solution

The fourth proportional to 15,886,468.71, 21,854,530.89 and 13,917,479.67 is: 19,145,852.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886,468.71 : 21,854,530.89 = 13,917,479.67 : x
  2. Step 2: Convert to fraction form
    15,886,468.71/21,854,530.89 = 13,917,479.67/x
  3. Step 3: Cross multiply
    15,886,468.71x = 21,854,530.89 × 13,917,479.67
  4. Step 4: Simplify right side
    15,886,468.71x = 304,159,989,358,962
  5. Step 5: Solve for x
    x = 304,159,989,358,962/15,886,468.71
  6. Step 6: Final answer
    x = 19,145,852.67

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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.