Home / 724,345,216.61-999,813,166.47-423,011,811.24

Finding the Fourth Proportional to 724,345,216.61, 999,813,166.47 and 423,011,811.24

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Solution

The fourth proportional to 724,345,216.61, 999,813,166.47 and 423,011,811.24 is: 583,882,890.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,345,216.61 : 999,813,166.47 = 423,011,811.24 : x
  2. Step 2: Convert to fraction form
    724,345,216.61/999,813,166.47 = 423,011,811.24/x
  3. Step 3: Cross multiply
    724,345,216.61x = 999,813,166.47 × 423,011,811.24
  4. Step 4: Simplify right side
    724,345,216.61x = 422,932,778,450,074,368
  5. Step 5: Solve for x
    x = 422,932,778,450,074,368/724,345,216.61
  6. Step 6: Final answer
    x = 583,882,890.03

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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.