Home / 139,075,999.20-208,613,998.80-36,855,813.60

Finding the Fourth Proportional to 139,075,999.20, 208,613,998.80 and 36,855,813.60

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Solution

The fourth proportional to 139,075,999.20, 208,613,998.80 and 36,855,813.60 is: 55,283,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,075,999.20 : 208,613,998.80 = 36,855,813.60 : x
  2. Step 2: Convert to fraction form
    139,075,999.20/208,613,998.80 = 36,855,813.60/x
  3. Step 3: Cross multiply
    139,075,999.20x = 208,613,998.80 × 36,855,813.60
  4. Step 4: Simplify right side
    139,075,999.20x = 7,688,638,654,123,424
  5. Step 5: Solve for x
    x = 7,688,638,654,123,424/139,075,999.20
  6. Step 6: Final answer
    x = 55,283,720.40

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1.5x scale

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.