Home / 27,819,629.69-38,346,746.76-21,929,666.22

Finding the Fourth Proportional to 27,819,629.69, 38,346,746.76 and 21,929,666.22

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Solution

The fourth proportional to 27,819,629.69, 38,346,746.76 and 21,929,666.22 is: 30,227,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819,629.69 : 38,346,746.76 = 21,929,666.22 : x
  2. Step 2: Convert to fraction form
    27,819,629.69/38,346,746.76 = 21,929,666.22/x
  3. Step 3: Cross multiply
    27,819,629.69x = 38,346,746.76 × 21,929,666.22
  4. Step 4: Simplify right side
    27,819,629.69x = 840,931,357,069,666.38
  5. Step 5: Solve for x
    x = 840,931,357,069,666.38/27,819,629.69
  6. Step 6: Final answer
    x = 30,227,985.30

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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.