Home / 30,920,489.40-42,671,348.46-17,169,683.16

Finding the Fourth Proportional to 30,920,489.40, 42,671,348.46 and 17,169,683.16

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Solution

The fourth proportional to 30,920,489.40, 42,671,348.46 and 17,169,683.16 is: 23,694,758.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920,489.40 : 42,671,348.46 = 17,169,683.16 : x
  2. Step 2: Convert to fraction form
    30,920,489.40/42,671,348.46 = 17,169,683.16/x
  3. Step 3: Cross multiply
    30,920,489.40x = 42,671,348.46 × 17,169,683.16
  4. Step 4: Simplify right side
    30,920,489.40x = 732,653,533,068,154
  5. Step 5: Solve for x
    x = 732,653,533,068,154/30,920,489.40
  6. Step 6: Final answer
    x = 23,694,758.63

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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.