Home / 139,968,007.65-209,952,011.48-89,075,642.85

Finding the Fourth Proportional to 139,968,007.65, 209,952,011.48 and 89,075,642.85

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Solution

The fourth proportional to 139,968,007.65, 209,952,011.48 and 89,075,642.85 is: 133,613,464.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,007.65 : 209,952,011.48 = 89,075,642.85 : x
  2. Step 2: Convert to fraction form
    139,968,007.65/209,952,011.48 = 89,075,642.85/x
  3. Step 3: Cross multiply
    139,968,007.65x = 209,952,011.48 × 89,075,642.85
  4. Step 4: Simplify right side
    139,968,007.65x = 18,701,610,389,786,200
  5. Step 5: Solve for x
    x = 18,701,610,389,786,200/139,968,007.65
  6. Step 6: Final answer
    x = 133,613,464.28

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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.