Home / 215,476,428-323,260,035.72-69,898,622.40

Finding the Fourth Proportional to 215,476,428, 323,260,035.72 and 69,898,622.40

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Solution

The fourth proportional to 215,476,428, 323,260,035.72 and 69,898,622.40 is: 104,862,658.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,476,428 : 323,260,035.72 = 69,898,622.40 : x
  2. Step 2: Convert to fraction form
    215,476,428/323,260,035.72 = 69,898,622.40/x
  3. Step 3: Cross multiply
    215,476,428x = 323,260,035.72 × 69,898,622.40
  4. Step 4: Simplify right side
    215,476,428x = 22,595,431,173,802,796
  5. Step 5: Solve for x
    x = 22,595,431,173,802,796/215,476,428
  6. Step 6: Final answer
    x = 104,862,658.92

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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.