Home / 721,312,509,898.08-995,503,096,427.76-436,173,070,727.52

Finding the Fourth Proportional to 721,312,509,898.08, 995,503,096,427.76 and 436,173,070,727.52

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Solution

The fourth proportional to 721,312,509,898.08, 995,503,096,427.76 and 436,173,070,727.52 is: 601,974,368,292.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,312,509,898.08 : 995,503,096,427.76 = 436,173,070,727.52 : x
  2. Step 2: Convert to fraction form
    721,312,509,898.08/995,503,096,427.76 = 436,173,070,727.52/x
  3. Step 3: Cross multiply
    721,312,509,898.08x = 995,503,096,427.76 × 436,173,070,727.52
  4. Step 4: Simplify right side
    721,312,509,898.08x = 434,211,642,487,650,578,857,984
  5. Step 5: Solve for x
    x = 434,211,642,487,650,578,857,984/721,312,509,898.08
  6. Step 6: Final answer
    x = 601,974,368,292.88

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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.