Home / 637,627,426.80-879,898,662-355,354,847.52

Finding the Fourth Proportional to 637,627,426.80, 879,898,662 and 355,354,847.52

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Solution

The fourth proportional to 637,627,426.80, 879,898,662 and 355,354,847.52 is: 490,374,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,627,426.80 : 879,898,662 = 355,354,847.52 : x
  2. Step 2: Convert to fraction form
    637,627,426.80/879,898,662 = 355,354,847.52/x
  3. Step 3: Cross multiply
    637,627,426.80x = 879,898,662 × 355,354,847.52
  4. Step 4: Simplify right side
    637,627,426.80x = 312,676,254,868,062,016
  5. Step 5: Solve for x
    x = 312,676,254,868,062,016/637,627,426.80
  6. Step 6: Final answer
    x = 490,374,538.05

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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.