Home / 31,424,869.67-43,386,244.58-21,518,330.11

Finding the Fourth Proportional to 31,424,869.67, 43,386,244.58 and 21,518,330.11

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Solution

The fourth proportional to 31,424,869.67, 43,386,244.58 and 21,518,330.11 is: 29,708,938.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424,869.67 : 43,386,244.58 = 21,518,330.11 : x
  2. Step 2: Convert to fraction form
    31,424,869.67/43,386,244.58 = 21,518,330.11/x
  3. Step 3: Cross multiply
    31,424,869.67x = 43,386,244.58 × 21,518,330.11
  4. Step 4: Simplify right side
    31,424,869.67x = 933,599,533,050,968.62
  5. Step 5: Solve for x
    x = 933,599,533,050,968.62/31,424,869.67
  6. Step 6: Final answer
    x = 29,708,938.91

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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.