Home / 1,273,315,205.32-1,909,972,807.98-353,191,545.16

Finding the Fourth Proportional to 1,273,315,205.32, 1,909,972,807.98 and 353,191,545.16

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Solution

The fourth proportional to 1,273,315,205.32, 1,909,972,807.98 and 353,191,545.16 is: 529,787,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,315,205.32 : 1,909,972,807.98 = 353,191,545.16 : x
  2. Step 2: Convert to fraction form
    1,273,315,205.32/1,909,972,807.98 = 353,191,545.16/x
  3. Step 3: Cross multiply
    1,273,315,205.32x = 1,909,972,807.98 × 353,191,545.16
  4. Step 4: Simplify right side
    1,273,315,205.32x = 674,586,247,264,040,192
  5. Step 5: Solve for x
    x = 674,586,247,264,040,192/1,273,315,205.32
  6. Step 6: Final answer
    x = 529,787,317.74

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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.