Home / 421,611,010,988.40-581,806,876,820.40-228,918,773,613.60

Finding the Fourth Proportional to 421,611,010,988.40, 581,806,876,820.40 and 228,918,773,613.60

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Solution

The fourth proportional to 421,611,010,988.40, 581,806,876,820.40 and 228,918,773,613.60 is: 315,899,047,345.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,611,010,988.40 : 581,806,876,820.40 = 228,918,773,613.60 : x
  2. Step 2: Convert to fraction form
    421,611,010,988.40/581,806,876,820.40 = 228,918,773,613.60/x
  3. Step 3: Cross multiply
    421,611,010,988.40x = 581,806,876,820.40 × 228,918,773,613.60
  4. Step 4: Simplify right side
    421,611,010,988.40x = 133,186,516,721,684,816,330,752
  5. Step 5: Solve for x
    x = 133,186,516,721,684,816,330,752/421,611,010,988.40
  6. Step 6: Final answer
    x = 315,899,047,345.68

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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.