Home / 718,983,148.77-992,187,081.93-401,448,332.25

Finding the Fourth Proportional to 718,983,148.77, 992,187,081.93 and 401,448,332.25

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Solution

The fourth proportional to 718,983,148.77, 992,187,081.93 and 401,448,332.25 is: 553,993,302.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,983,148.77 : 992,187,081.93 = 401,448,332.25 : x
  2. Step 2: Convert to fraction form
    718,983,148.77/992,187,081.93 = 401,448,332.25/x
  3. Step 3: Cross multiply
    718,983,148.77x = 992,187,081.93 × 401,448,332.25
  4. Step 4: Simplify right side
    718,983,148.77x = 398,311,849,322,298,048
  5. Step 5: Solve for x
    x = 398,311,849,322,298,048/718,983,148.77
  6. Step 6: Final answer
    x = 553,993,302.91

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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.