Home / 139,715,703.81-209,341,873.08-84,962,666.16

Finding the Fourth Proportional to 139,715,703.81, 209,341,873.08 and 84,962,666.16

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Solution

The fourth proportional to 139,715,703.81, 209,341,873.08 and 84,962,666.16 is: 127,303,110.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,715,703.81 : 209,341,873.08 = 84,962,666.16 : x
  2. Step 2: Convert to fraction form
    139,715,703.81/209,341,873.08 = 84,962,666.16/x
  3. Step 3: Cross multiply
    139,715,703.81x = 209,341,873.08 × 84,962,666.16
  4. Step 4: Simplify right side
    139,715,703.81x = 17,786,243,675,805,132
  5. Step 5: Solve for x
    x = 17,786,243,675,805,132/139,715,703.81
  6. Step 6: Final answer
    x = 127,303,110.46

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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.