Home / 30,486,874.55-42,070,343.22-18,097,497.68

Finding the Fourth Proportional to 30,486,874.55, 42,070,343.22 and 18,097,497.68

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Solution

The fourth proportional to 30,486,874.55, 42,070,343.22 and 18,097,497.68 is: 24,973,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,486,874.55 : 42,070,343.22 = 18,097,497.68 : x
  2. Step 2: Convert to fraction form
    30,486,874.55/42,070,343.22 = 18,097,497.68/x
  3. Step 3: Cross multiply
    30,486,874.55x = 42,070,343.22 × 18,097,497.68
  4. Step 4: Simplify right side
    30,486,874.55x = 761,367,938,610,402
  5. Step 5: Solve for x
    x = 761,367,938,610,402/30,486,874.55
  6. Step 6: Final answer
    x = 24,973,630.45

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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.