Home / 15,346,070.40-21,176,069.80-8,470,109.60

Finding the Fourth Proportional to 15,346,070.40, 21,176,069.80 and 8,470,109.60

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Solution

The fourth proportional to 15,346,070.40, 21,176,069.80 and 8,470,109.60 is: 11,687,919.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346,070.40 : 21,176,069.80 = 8,470,109.60 : x
  2. Step 2: Convert to fraction form
    15,346,070.40/21,176,069.80 = 8,470,109.60/x
  3. Step 3: Cross multiply
    15,346,070.40x = 21,176,069.80 × 8,470,109.60
  4. Step 4: Simplify right side
    15,346,070.40x = 179,363,632,103,250.09
  5. Step 5: Solve for x
    x = 179,363,632,103,250.09/15,346,070.40
  6. Step 6: Final answer
    x = 11,687,919.28

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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.