Home / 450,948,813.34-622,088,221.89-391,326,426.94

Finding the Fourth Proportional to 450,948,813.34, 622,088,221.89 and 391,326,426.94

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Solution

The fourth proportional to 450,948,813.34, 622,088,221.89 and 391,326,426.94 is: 539,838,566.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,948,813.34 : 622,088,221.89 = 391,326,426.94 : x
  2. Step 2: Convert to fraction form
    450,948,813.34/622,088,221.89 = 391,326,426.94/x
  3. Step 3: Cross multiply
    450,948,813.34x = 622,088,221.89 × 391,326,426.94
  4. Step 4: Simplify right side
    450,948,813.34x = 243,439,561,113,671,584
  5. Step 5: Solve for x
    x = 243,439,561,113,671,584/450,948,813.34
  6. Step 6: Final answer
    x = 539,838,566.84

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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.