Home / 1,303,460,998.40-1,957,458,979.20-691,240,966.40

Finding the Fourth Proportional to 1,303,460,998.40, 1,957,458,979.20 and 691,240,966.40

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Solution

The fourth proportional to 1,303,460,998.40, 1,957,458,979.20 and 691,240,966.40 is: 1,038,063,922.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,460,998.40 : 1,957,458,979.20 = 691,240,966.40 : x
  2. Step 2: Convert to fraction form
    1,303,460,998.40/1,957,458,979.20 = 691,240,966.40/x
  3. Step 3: Cross multiply
    1,303,460,998.40x = 1,957,458,979.20 × 691,240,966.40
  4. Step 4: Simplify right side
    1,303,460,998.40x = 1,353,075,836,470,565,376
  5. Step 5: Solve for x
    x = 1,353,075,836,470,565,376/1,303,460,998.40
  6. Step 6: Final answer
    x = 1,038,063,922.23

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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.