Home / 421,604,314.74-581,832,136.13-233,432,612.20

Finding the Fourth Proportional to 421,604,314.74, 581,832,136.13 and 233,432,612.20

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Solution

The fourth proportional to 421,604,314.74, 581,832,136.13 and 233,432,612.20 is: 322,147,071.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,604,314.74 : 581,832,136.13 = 233,432,612.20 : x
  2. Step 2: Convert to fraction form
    421,604,314.74/581,832,136.13 = 233,432,612.20/x
  3. Step 3: Cross multiply
    421,604,314.74x = 581,832,136.13 × 233,432,612.20
  4. Step 4: Simplify right side
    421,604,314.74x = 135,818,595,398,731,888
  5. Step 5: Solve for x
    x = 135,818,595,398,731,888/421,604,314.74
  6. Step 6: Final answer
    x = 322,147,071.67

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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.