Home / 620,639,460.71-931,186,195.44-288,804,731.76

Finding the Fourth Proportional to 620,639,460.71, 931,186,195.44 and 288,804,731.76

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Solution

The fourth proportional to 620,639,460.71, 931,186,195.44 and 288,804,731.76 is: 433,312,730.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,639,460.71 : 931,186,195.44 = 288,804,731.76 : x
  2. Step 2: Convert to fraction form
    620,639,460.71/931,186,195.44 = 288,804,731.76/x
  3. Step 3: Cross multiply
    620,639,460.71x = 931,186,195.44 × 288,804,731.76
  4. Step 4: Simplify right side
    620,639,460.71x = 268,930,979,392,664,128
  5. Step 5: Solve for x
    x = 268,930,979,392,664,128/620,639,460.71
  6. Step 6: Final answer
    x = 433,312,730.53

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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.