Home / 776,097,916.60-1,164,308,615.70-258,689,097.40

Finding the Fourth Proportional to 776,097,916.60, 1,164,308,615.70 and 258,689,097.40

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Solution

The fourth proportional to 776,097,916.60, 1,164,308,615.70 and 258,689,097.40 is: 388,087,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,097,916.60 : 1,164,308,615.70 = 258,689,097.40 : x
  2. Step 2: Convert to fraction form
    776,097,916.60/1,164,308,615.70 = 258,689,097.40/x
  3. Step 3: Cross multiply
    776,097,916.60x = 1,164,308,615.70 × 258,689,097.40
  4. Step 4: Simplify right side
    776,097,916.60x = 301,193,944,890,476,480
  5. Step 5: Solve for x
    x = 301,193,944,890,476,480/776,097,916.60
  6. Step 6: Final answer
    x = 388,087,557.57

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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.