Home / 38,740,639.29-53,464,509.03-21,336,980.50

Finding the Fourth Proportional to 38,740,639.29, 53,464,509.03 and 21,336,980.50

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Solution

The fourth proportional to 38,740,639.29, 53,464,509.03 and 21,336,980.50 is: 29,446,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,740,639.29 : 53,464,509.03 = 21,336,980.50 : x
  2. Step 2: Convert to fraction form
    38,740,639.29/53,464,509.03 = 21,336,980.50/x
  3. Step 3: Cross multiply
    38,740,639.29x = 53,464,509.03 × 21,336,980.50
  4. Step 4: Simplify right side
    38,740,639.29x = 1,140,771,186,615,184
  5. Step 5: Solve for x
    x = 1,140,771,186,615,184/38,740,639.29
  6. Step 6: Final answer
    x = 29,446,369.69

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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.