Home / 86,216,803.08-129,345,795.24-28,709,572.50

Finding the Fourth Proportional to 86,216,803.08, 129,345,795.24 and 28,709,572.50

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Solution

The fourth proportional to 86,216,803.08, 129,345,795.24 and 28,709,572.50 is: 43,071,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,216,803.08 : 129,345,795.24 = 28,709,572.50 : x
  2. Step 2: Convert to fraction form
    86,216,803.08/129,345,795.24 = 28,709,572.50/x
  3. Step 3: Cross multiply
    86,216,803.08x = 129,345,795.24 × 28,709,572.50
  4. Step 4: Simplify right side
    86,216,803.08x = 3,713,462,486,012,934.50
  5. Step 5: Solve for x
    x = 3,713,462,486,012,934.50/86,216,803.08
  6. Step 6: Final answer
    x = 43,071,215.28

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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.