Home / 15,346,071.40-21,176,071.18-8,470,110.60

Finding the Fourth Proportional to 15,346,071.40, 21,176,071.18 and 8,470,110.60

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Solution

The fourth proportional to 15,346,071.40, 21,176,071.18 and 8,470,110.60 is: 11,687,920.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346,071.40 : 21,176,071.18 = 8,470,110.60 : x
  2. Step 2: Convert to fraction form
    15,346,071.40/21,176,071.18 = 8,470,110.60/x
  3. Step 3: Cross multiply
    15,346,071.40x = 21,176,071.18 × 8,470,110.60
  4. Step 4: Simplify right side
    15,346,071.40x = 179,363,664,968,072.50
  5. Step 5: Solve for x
    x = 179,363,664,968,072.50/15,346,071.40
  6. Step 6: Final answer
    x = 11,687,920.66

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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.