Home / 354,294,667.80-531,442,001.70-289,671,442.20

Finding the Fourth Proportional to 354,294,667.80, 531,442,001.70 and 289,671,442.20

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Solution

The fourth proportional to 354,294,667.80, 531,442,001.70 and 289,671,442.20 is: 434,507,163.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,667.80 : 531,442,001.70 = 289,671,442.20 : x
  2. Step 2: Convert to fraction form
    354,294,667.80/531,442,001.70 = 289,671,442.20/x
  3. Step 3: Cross multiply
    354,294,667.80x = 531,442,001.70 × 289,671,442.20
  4. Step 4: Simplify right side
    354,294,667.80x = 153,943,571,078,093,856
  5. Step 5: Solve for x
    x = 153,943,571,078,093,856/354,294,667.80
  6. Step 6: Final answer
    x = 434,507,163.30

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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.