Home / 20,671,866.04-31,010,636.69-7,021,347.76

Finding the Fourth Proportional to 20,671,866.04, 31,010,636.69 and 7,021,347.76

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Solution

The fourth proportional to 20,671,866.04, 31,010,636.69 and 7,021,347.76 is: 10,532,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671,866.04 : 31,010,636.69 = 7,021,347.76 : x
  2. Step 2: Convert to fraction form
    20,671,866.04/31,010,636.69 = 7,021,347.76/x
  3. Step 3: Cross multiply
    20,671,866.04x = 31,010,636.69 × 7,021,347.76
  4. Step 4: Simplify right side
    20,671,866.04x = 217,736,464,269,345.38
  5. Step 5: Solve for x
    x = 217,736,464,269,345.38/20,671,866.04
  6. Step 6: Final answer
    x = 10,532,985.45

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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.