Home / 139,066,346.90-208,598,483.55-42,021,866.90

Finding the Fourth Proportional to 139,066,346.90, 208,598,483.55 and 42,021,866.90

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Solution

The fourth proportional to 139,066,346.90, 208,598,483.55 and 42,021,866.90 is: 63,032,487.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,066,346.90 : 208,598,483.55 = 42,021,866.90 : x
  2. Step 2: Convert to fraction form
    139,066,346.90/208,598,483.55 = 42,021,866.90/x
  3. Step 3: Cross multiply
    139,066,346.90x = 208,598,483.55 × 42,021,866.90
  4. Step 4: Simplify right side
    139,066,346.90x = 8,765,697,711,279,940
  5. Step 5: Solve for x
    x = 8,765,697,711,279,940/139,066,346.90
  6. Step 6: Final answer
    x = 63,032,487.06

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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.