Home / 657,468,486.34-987,776,041.95-421,580,166.39

Finding the Fourth Proportional to 657,468,486.34, 987,776,041.95 and 421,580,166.39

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Solution

The fourth proportional to 657,468,486.34, 987,776,041.95 and 421,580,166.39 is: 633,379,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,468,486.34 : 987,776,041.95 = 421,580,166.39 : x
  2. Step 2: Convert to fraction form
    657,468,486.34/987,776,041.95 = 421,580,166.39/x
  3. Step 3: Cross multiply
    657,468,486.34x = 987,776,041.95 × 421,580,166.39
  4. Step 4: Simplify right side
    657,468,486.34x = 416,426,788,118,551,104
  5. Step 5: Solve for x
    x = 416,426,788,118,551,104/657,468,486.34
  6. Step 6: Final answer
    x = 633,379,084.73

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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.