Home / 157,004,878.80-216,666,742.64-87,388,765.12

Finding the Fourth Proportional to 157,004,878.80, 216,666,742.64 and 87,388,765.12

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Solution

The fourth proportional to 157,004,878.80, 216,666,742.64 and 87,388,765.12 is: 120,596,501.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,004,878.80 : 216,666,742.64 = 87,388,765.12 : x
  2. Step 2: Convert to fraction form
    157,004,878.80/216,666,742.64 = 87,388,765.12/x
  3. Step 3: Cross multiply
    157,004,878.80x = 216,666,742.64 × 87,388,765.12
  4. Step 4: Simplify right side
    157,004,878.80x = 18,934,239,081,882,448
  5. Step 5: Solve for x
    x = 18,934,239,081,882,448/157,004,878.80
  6. Step 6: Final answer
    x = 120,596,501.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.