Home / 28,242,430.24-42,377,953.20-12,888,018.40

Finding the Fourth Proportional to 28,242,430.24, 42,377,953.20 and 12,888,018.40

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Solution

The fourth proportional to 28,242,430.24, 42,377,953.20 and 12,888,018.40 is: 19,338,556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242,430.24 : 42,377,953.20 = 12,888,018.40 : x
  2. Step 2: Convert to fraction form
    28,242,430.24/42,377,953.20 = 12,888,018.40/x
  3. Step 3: Cross multiply
    28,242,430.24x = 42,377,953.20 × 12,888,018.40
  4. Step 4: Simplify right side
    28,242,430.24x = 546,167,840,595,938.94
  5. Step 5: Solve for x
    x = 546,167,840,595,938.94/28,242,430.24
  6. Step 6: Final answer
    x = 19,338,556.77

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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.