Home / 405,743,973.95-559,939,180.29-229,528,435.07

Finding the Fourth Proportional to 405,743,973.95, 559,939,180.29 and 229,528,435.07

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Solution

The fourth proportional to 405,743,973.95, 559,939,180.29 and 229,528,435.07 is: 316,756,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,743,973.95 : 559,939,180.29 = 229,528,435.07 : x
  2. Step 2: Convert to fraction form
    405,743,973.95/559,939,180.29 = 229,528,435.07/x
  3. Step 3: Cross multiply
    405,743,973.95x = 559,939,180.29 × 229,528,435.07
  4. Step 4: Simplify right side
    405,743,973.95x = 128,521,963,786,342,272
  5. Step 5: Solve for x
    x = 128,521,963,786,342,272/405,743,973.95
  6. Step 6: Final answer
    x = 316,756,309.49

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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.