Home / 39,040,307.09-53,875,628.88-21,637,775.82

Finding the Fourth Proportional to 39,040,307.09, 53,875,628.88 and 21,637,775.82

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Solution

The fourth proportional to 39,040,307.09, 53,875,628.88 and 21,637,775.82 is: 29,860,133.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,040,307.09 : 53,875,628.88 = 21,637,775.82 : x
  2. Step 2: Convert to fraction form
    39,040,307.09/53,875,628.88 = 21,637,775.82/x
  3. Step 3: Cross multiply
    39,040,307.09x = 53,875,628.88 × 21,637,775.82
  4. Step 4: Simplify right side
    39,040,307.09x = 1,165,748,779,866,957.75
  5. Step 5: Solve for x
    x = 1,165,748,779,866,957.75/39,040,307.09
  6. Step 6: Final answer
    x = 29,860,133.46

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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.