Home / 15,301,458.52-21,114,407.40-8,683,939.64

Finding the Fourth Proportional to 15,301,458.52, 21,114,407.40 and 8,683,939.64

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Solution

The fourth proportional to 15,301,458.52, 21,114,407.40 and 8,683,939.64 is: 11,982,925.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301,458.52 : 21,114,407.40 = 8,683,939.64 : x
  2. Step 2: Convert to fraction form
    15,301,458.52/21,114,407.40 = 8,683,939.64/x
  3. Step 3: Cross multiply
    15,301,458.52x = 21,114,407.40 × 8,683,939.64
  4. Step 4: Simplify right side
    15,301,458.52x = 183,356,239,395,969.34
  5. Step 5: Solve for x
    x = 183,356,239,395,969.34/15,301,458.52
  6. Step 6: Final answer
    x = 11,982,925.62

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Double scale
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1.5x scale

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.