Home / 637,461,275.96-879,673,336-355,189,132.28

Finding the Fourth Proportional to 637,461,275.96, 879,673,336 and 355,189,132.28

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Solution

The fourth proportional to 637,461,275.96, 879,673,336 and 355,189,132.28 is: 490,148,061.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,461,275.96 : 879,673,336 = 355,189,132.28 : x
  2. Step 2: Convert to fraction form
    637,461,275.96/879,673,336 = 355,189,132.28/x
  3. Step 3: Cross multiply
    637,461,275.96x = 879,673,336 × 355,189,132.28
  4. Step 4: Simplify right side
    637,461,275.96x = 312,450,408,903,692,864
  5. Step 5: Solve for x
    x = 312,450,408,903,692,864/637,461,275.96
  6. Step 6: Final answer
    x = 490,148,061.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.