Home / 19,319,123.90-28,979,678.10-4,942,315.64

Finding the Fourth Proportional to 19,319,123.90, 28,979,678.10 and 4,942,315.64

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Solution

The fourth proportional to 19,319,123.90, 28,979,678.10 and 4,942,315.64 is: 7,413,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319,123.90 : 28,979,678.10 = 4,942,315.64 : x
  2. Step 2: Convert to fraction form
    19,319,123.90/28,979,678.10 = 4,942,315.64/x
  3. Step 3: Cross multiply
    19,319,123.90x = 28,979,678.10 × 4,942,315.64
  4. Step 4: Simplify right side
    19,319,123.90x = 143,226,716,315,795.47
  5. Step 5: Solve for x
    x = 143,226,716,315,795.47/19,319,123.90
  6. Step 6: Final answer
    x = 7,413,727.30

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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.