Home / 421,611,010,254.76-581,806,875,809.22-228,918,772,876.72

Finding the Fourth Proportional to 421,611,010,254.76, 581,806,875,809.22 and 228,918,772,876.72

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Solution

The fourth proportional to 421,611,010,254.76, 581,806,875,809.22 and 228,918,772,876.72 is: 315,899,046,329.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,611,010,254.76 : 581,806,875,809.22 = 228,918,772,876.72 : x
  2. Step 2: Convert to fraction form
    421,611,010,254.76/581,806,875,809.22 = 228,918,772,876.72/x
  3. Step 3: Cross multiply
    421,611,010,254.76x = 581,806,875,809.22 × 228,918,772,876.72
  4. Step 4: Simplify right side
    421,611,010,254.76x = 133,186,516,061,484,874,727,424
  5. Step 5: Solve for x
    x = 133,186,516,061,484,874,727,424/421,611,010,254.76
  6. Step 6: Final answer
    x = 315,899,046,329.47

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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.