Home / 1,298,631,660.39-1,792,063,678.95-703,903,375.40

Finding the Fourth Proportional to 1,298,631,660.39, 1,792,063,678.95 and 703,903,375.40

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Solution

The fourth proportional to 1,298,631,660.39, 1,792,063,678.95 and 703,903,375.40 is: 971,360,633.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,631,660.39 : 1,792,063,678.95 = 703,903,375.40 : x
  2. Step 2: Convert to fraction form
    1,298,631,660.39/1,792,063,678.95 = 703,903,375.40/x
  3. Step 3: Cross multiply
    1,298,631,660.39x = 1,792,063,678.95 × 703,903,375.40
  4. Step 4: Simplify right side
    1,298,631,660.39x = 1,261,439,672,535,686,656
  5. Step 5: Solve for x
    x = 1,261,439,672,535,686,656/1,298,631,660.39
  6. Step 6: Final answer
    x = 971,360,633.67

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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.