Home / 38,877,886.71-53,651,666.33-21,237,033.57

Finding the Fourth Proportional to 38,877,886.71, 53,651,666.33 and 21,237,033.57

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Solution

The fourth proportional to 38,877,886.71, 53,651,666.33 and 21,237,033.57 is: 29,307,206.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,877,886.71 : 53,651,666.33 = 21,237,033.57 : x
  2. Step 2: Convert to fraction form
    38,877,886.71/53,651,666.33 = 21,237,033.57/x
  3. Step 3: Cross multiply
    38,877,886.71x = 53,651,666.33 × 21,237,033.57
  4. Step 4: Simplify right side
    38,877,886.71x = 1,139,402,238,936,648.75
  5. Step 5: Solve for x
    x = 1,139,402,238,936,648.75/38,877,886.71
  6. Step 6: Final answer
    x = 29,307,206.11

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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.