Home / 914,681,903.31-1,372,020,139.71-259,633,483.92

Finding the Fourth Proportional to 914,681,903.31, 1,372,020,139.71 and 259,633,483.92

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Solution

The fourth proportional to 914,681,903.31, 1,372,020,139.71 and 259,633,483.92 is: 389,449,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,681,903.31 : 1,372,020,139.71 = 259,633,483.92 : x
  2. Step 2: Convert to fraction form
    914,681,903.31/1,372,020,139.71 = 259,633,483.92/x
  3. Step 3: Cross multiply
    914,681,903.31x = 1,372,020,139.71 × 259,633,483.92
  4. Step 4: Simplify right side
    914,681,903.31x = 356,222,368,881,312,448
  5. Step 5: Solve for x
    x = 356,222,368,881,312,448/914,681,903.31
  6. Step 6: Final answer
    x = 389,449,455.15

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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.