Home / 1,223,657,353,949.40-1,688,652,398,314.70-667,474,601,434.35

Finding the Fourth Proportional to 1,223,657,353,949.40, 1,688,652,398,314.70 and 667,474,601,434.35

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Solution

The fourth proportional to 1,223,657,353,949.40, 1,688,652,398,314.70 and 667,474,601,434.35 is: 921,117,813,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,657,353,949.40 : 1,688,652,398,314.70 = 667,474,601,434.35 : x
  2. Step 2: Convert to fraction form
    1,223,657,353,949.40/1,688,652,398,314.70 = 667,474,601,434.35/x
  3. Step 3: Cross multiply
    1,223,657,353,949.40x = 1,688,652,398,314.70 × 667,474,601,434.35
  4. Step 4: Simplify right side
    1,223,657,353,949.40x = 1,127,132,586,526,263,545,430,016
  5. Step 5: Solve for x
    x = 1,127,132,586,526,263,545,430,016/1,223,657,353,949.40
  6. Step 6: Final answer
    x = 921,117,813,649.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.