Home / 405,743,972.95-559,939,178.91-229,528,434.07

Finding the Fourth Proportional to 405,743,972.95, 559,939,178.91 and 229,528,434.07

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Solution

The fourth proportional to 405,743,972.95, 559,939,178.91 and 229,528,434.07 is: 316,756,308.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,743,972.95 : 559,939,178.91 = 229,528,434.07 : x
  2. Step 2: Convert to fraction form
    405,743,972.95/559,939,178.91 = 229,528,434.07/x
  3. Step 3: Cross multiply
    405,743,972.95x = 559,939,178.91 × 229,528,434.07
  4. Step 4: Simplify right side
    405,743,972.95x = 128,521,962,909,653,856
  5. Step 5: Solve for x
    x = 128,521,962,909,653,856/405,743,972.95
  6. Step 6: Final answer
    x = 316,756,308.11

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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.