Home / 139,715,543,492.31-209,608,583,657.16-38,986,326,460.25

Finding the Fourth Proportional to 139,715,543,492.31, 209,608,583,657.16 and 38,986,326,460.25

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Solution

The fourth proportional to 139,715,543,492.31, 209,608,583,657.16 and 38,986,326,460.25 is: 58,489,331,015.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,715,543,492.31 : 209,608,583,657.16 = 38,986,326,460.25 : x
  2. Step 2: Convert to fraction form
    139,715,543,492.31/209,608,583,657.16 = 38,986,326,460.25/x
  3. Step 3: Cross multiply
    139,715,543,492.31x = 209,608,583,657.16 × 38,986,326,460.25
  4. Step 4: Simplify right side
    139,715,543,492.31x = 8,171,868,671,328,243,417,088
  5. Step 5: Solve for x
    x = 8,171,868,671,328,243,417,088/139,715,543,492.31
  6. Step 6: Final answer
    x = 58,489,331,015.47

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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.