Home / 707,881,806.50-1,061,865,271.80-216,599,332.47

Finding the Fourth Proportional to 707,881,806.50, 1,061,865,271.80 and 216,599,332.47

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Solution

The fourth proportional to 707,881,806.50, 1,061,865,271.80 and 216,599,332.47 is: 324,912,021.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,881,806.50 : 1,061,865,271.80 = 216,599,332.47 : x
  2. Step 2: Convert to fraction form
    707,881,806.50/1,061,865,271.80 = 216,599,332.47/x
  3. Step 3: Cross multiply
    707,881,806.50x = 1,061,865,271.80 × 216,599,332.47
  4. Step 4: Simplify right side
    707,881,806.50x = 229,999,309,044,955,104
  5. Step 5: Solve for x
    x = 229,999,309,044,955,104/707,881,806.50
  6. Step 6: Final answer
    x = 324,912,021.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.