Home / 340,520,089.81-510,780,141.45-81,735,310.09

Finding the Fourth Proportional to 340,520,089.81, 510,780,141.45 and 81,735,310.09

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Solution

The fourth proportional to 340,520,089.81, 510,780,141.45 and 81,735,310.09 is: 122,602,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,520,089.81 : 510,780,141.45 = 81,735,310.09 : x
  2. Step 2: Convert to fraction form
    340,520,089.81/510,780,141.45 = 81,735,310.09/x
  3. Step 3: Cross multiply
    340,520,089.81x = 510,780,141.45 × 81,735,310.09
  4. Step 4: Simplify right side
    340,520,089.81x = 41,748,773,249,229,816
  5. Step 5: Solve for x
    x = 41,748,773,249,229,816/340,520,089.81
  6. Step 6: Final answer
    x = 122,602,966.75

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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.