Home / 943,037,573.78-1,291,966,085.84-907,692,740.82

Finding the Fourth Proportional to 943,037,573.78, 1,291,966,085.84 and 907,692,740.82

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Solution

The fourth proportional to 943,037,573.78, 1,291,966,085.84 and 907,692,740.82 is: 1,243,543,491.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,037,573.78 : 1,291,966,085.84 = 907,692,740.82 : x
  2. Step 2: Convert to fraction form
    943,037,573.78/1,291,966,085.84 = 907,692,740.82/x
  3. Step 3: Cross multiply
    943,037,573.78x = 1,291,966,085.84 × 907,692,740.82
  4. Step 4: Simplify right side
    943,037,573.78x = 1,172,708,237,503,141,632
  5. Step 5: Solve for x
    x = 1,172,708,237,503,141,632/943,037,573.78
  6. Step 6: Final answer
    x = 1,243,543,491.91

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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.