Home / 21,421,943.61-32,132,845.35-7,775,071.82

Finding the Fourth Proportional to 21,421,943.61, 32,132,845.35 and 7,775,071.82

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Solution

The fourth proportional to 21,421,943.61, 32,132,845.35 and 7,775,071.82 is: 11,662,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421,943.61 : 32,132,845.35 = 7,775,071.82 : x
  2. Step 2: Convert to fraction form
    21,421,943.61/32,132,845.35 = 7,775,071.82/x
  3. Step 3: Cross multiply
    21,421,943.61x = 32,132,845.35 × 7,775,071.82
  4. Step 4: Simplify right side
    21,421,943.61x = 249,835,180,216,538.84
  5. Step 5: Solve for x
    x = 249,835,180,216,538.84/21,421,943.61
  6. Step 6: Final answer
    x = 11,662,582.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.