Home / 139,097,237.70-208,645,856.55-87,365,064.90

Finding the Fourth Proportional to 139,097,237.70, 208,645,856.55 and 87,365,064.90

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Solution

The fourth proportional to 139,097,237.70, 208,645,856.55 and 87,365,064.90 is: 131,047,597.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,097,237.70 : 208,645,856.55 = 87,365,064.90 : x
  2. Step 2: Convert to fraction form
    139,097,237.70/208,645,856.55 = 87,365,064.90/x
  3. Step 3: Cross multiply
    139,097,237.70x = 208,645,856.55 × 87,365,064.90
  4. Step 4: Simplify right side
    139,097,237.70x = 18,228,358,798,606,844
  5. Step 5: Solve for x
    x = 18,228,358,798,606,844/139,097,237.70
  6. Step 6: Final answer
    x = 131,047,597.35

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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.