Home / 38,740,638.29-53,464,507.65-21,336,979.50

Finding the Fourth Proportional to 38,740,638.29, 53,464,507.65 and 21,336,979.50

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Solution

The fourth proportional to 38,740,638.29, 53,464,507.65 and 21,336,979.50 is: 29,446,368.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,740,638.29 : 53,464,507.65 = 21,336,979.50 : x
  2. Step 2: Convert to fraction form
    38,740,638.29/53,464,507.65 = 21,336,979.50/x
  3. Step 3: Cross multiply
    38,740,638.29x = 53,464,507.65 × 21,336,979.50
  4. Step 4: Simplify right side
    38,740,638.29x = 1,140,771,103,705,643.25
  5. Step 5: Solve for x
    x = 1,140,771,103,705,643.25/38,740,638.29
  6. Step 6: Final answer
    x = 29,446,368.32

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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.