Home / 398,309,179,250.73-549,668,323,448.75-215,406,280,895.41

Finding the Fourth Proportional to 398,309,179,250.73, 549,668,323,448.75 and 215,406,280,895.41

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Solution

The fourth proportional to 398,309,179,250.73, 549,668,323,448.75 and 215,406,280,895.41 is: 297,261,563,248.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,309,179,250.73 : 549,668,323,448.75 = 215,406,280,895.41 : x
  2. Step 2: Convert to fraction form
    398,309,179,250.73/549,668,323,448.75 = 215,406,280,895.41/x
  3. Step 3: Cross multiply
    398,309,179,250.73x = 549,668,323,448.75 × 215,406,280,895.41
  4. Step 4: Simplify right side
    398,309,179,250.73x = 118,402,009,280,110,523,318,272
  5. Step 5: Solve for x
    x = 118,402,009,280,110,523,318,272/398,309,179,250.73
  6. Step 6: Final answer
    x = 297,261,563,248.03

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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.