Home / 388,207,216.36-535,795,155.84-229,430,856

Finding the Fourth Proportional to 388,207,216.36, 535,795,155.84 and 229,430,856

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Solution

The fourth proportional to 388,207,216.36, 535,795,155.84 and 229,430,856 is: 316,655,476.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,207,216.36 : 535,795,155.84 = 229,430,856 : x
  2. Step 2: Convert to fraction form
    388,207,216.36/535,795,155.84 = 229,430,856/x
  3. Step 3: Cross multiply
    388,207,216.36x = 535,795,155.84 × 229,430,856
  4. Step 4: Simplify right side
    388,207,216.36x = 122,927,941,245,024,592
  5. Step 5: Solve for x
    x = 122,927,941,245,024,592/388,207,216.36
  6. Step 6: Final answer
    x = 316,655,476.93

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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.