Home / 778,483,742.88-1,068,585,035.12-688,404,070.56

Finding the Fourth Proportional to 778,483,742.88, 1,068,585,035.12 and 688,404,070.56

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Solution

The fourth proportional to 778,483,742.88, 1,068,585,035.12 and 688,404,070.56 is: 944,937,250.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,483,742.88 : 1,068,585,035.12 = 688,404,070.56 : x
  2. Step 2: Convert to fraction form
    778,483,742.88/1,068,585,035.12 = 688,404,070.56/x
  3. Step 3: Cross multiply
    778,483,742.88x = 1,068,585,035.12 × 688,404,070.56
  4. Step 4: Simplify right side
    778,483,742.88x = 735,618,287,916,108,544
  5. Step 5: Solve for x
    x = 735,618,287,916,108,544/778,483,742.88
  6. Step 6: Final answer
    x = 944,937,250.96

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.