Home / 358,859,681.32-538,289,521.36-86,230,448.32

Finding the Fourth Proportional to 358,859,681.32, 538,289,521.36 and 86,230,448.32

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Solution

The fourth proportional to 358,859,681.32, 538,289,521.36 and 86,230,448.32 is: 129,345,672.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,859,681.32 : 538,289,521.36 = 86,230,448.32 : x
  2. Step 2: Convert to fraction form
    358,859,681.32/538,289,521.36 = 86,230,448.32/x
  3. Step 3: Cross multiply
    358,859,681.32x = 538,289,521.36 × 86,230,448.32
  4. Step 4: Simplify right side
    358,859,681.32x = 46,416,946,750,139,568
  5. Step 5: Solve for x
    x = 46,416,946,750,139,568/358,859,681.32
  6. Step 6: Final answer
    x = 129,345,672.33

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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.