Home / 421,385,284.13-581,507,409.02-233,213,943.96

Finding the Fourth Proportional to 421,385,284.13, 581,507,409.02 and 233,213,943.96

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Solution

The fourth proportional to 421,385,284.13, 581,507,409.02 and 233,213,943.96 is: 321,832,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,385,284.13 : 581,507,409.02 = 233,213,943.96 : x
  2. Step 2: Convert to fraction form
    421,385,284.13/581,507,409.02 = 233,213,943.96/x
  3. Step 3: Cross multiply
    421,385,284.13x = 581,507,409.02 × 233,213,943.96
  4. Step 4: Simplify right side
    421,385,284.13x = 135,615,636,298,349,008
  5. Step 5: Solve for x
    x = 135,615,636,298,349,008/421,385,284.13
  6. Step 6: Final answer
    x = 321,832,872.21

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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.