Home / 74,815,809.12-103,317,118.12-70,739,877.16

Finding the Fourth Proportional to 74,815,809.12, 103,317,118.12 and 70,739,877.16

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Solution

The fourth proportional to 74,815,809.12, 103,317,118.12 and 70,739,877.16 is: 97,688,447.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,815,809.12 : 103,317,118.12 = 70,739,877.16 : x
  2. Step 2: Convert to fraction form
    74,815,809.12/103,317,118.12 = 70,739,877.16/x
  3. Step 3: Cross multiply
    74,815,809.12x = 103,317,118.12 × 70,739,877.16
  4. Step 4: Simplify right side
    74,815,809.12x = 7,308,640,244,334,010
  5. Step 5: Solve for x
    x = 7,308,640,244,334,010/74,815,809.12
  6. Step 6: Final answer
    x = 97,688,447.54

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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.