Home / 285,087,749.18-393,421,096.98-154,707,557.18

Finding the Fourth Proportional to 285,087,749.18, 393,421,096.98 and 154,707,557.18

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Solution

The fourth proportional to 285,087,749.18, 393,421,096.98 and 154,707,557.18 is: 213,496,430.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,087,749.18 : 393,421,096.98 = 154,707,557.18 : x
  2. Step 2: Convert to fraction form
    285,087,749.18/393,421,096.98 = 154,707,557.18/x
  3. Step 3: Cross multiply
    285,087,749.18x = 393,421,096.98 × 154,707,557.18
  4. Step 4: Simplify right side
    285,087,749.18x = 60,865,216,854,884,576
  5. Step 5: Solve for x
    x = 60,865,216,854,884,576/285,087,749.18
  6. Step 6: Final answer
    x = 213,496,430.59

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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.