Home / 1,981,734,128.43-2,972,533,868.52-507,888,409.47

Finding the Fourth Proportional to 1,981,734,128.43, 2,972,533,868.52 and 507,888,409.47

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Solution

The fourth proportional to 1,981,734,128.43, 2,972,533,868.52 and 507,888,409.47 is: 761,815,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,734,128.43 : 2,972,533,868.52 = 507,888,409.47 : x
  2. Step 2: Convert to fraction form
    1,981,734,128.43/2,972,533,868.52 = 507,888,409.47/x
  3. Step 3: Cross multiply
    1,981,734,128.43x = 2,972,533,868.52 × 507,888,409.47
  4. Step 4: Simplify right side
    1,981,734,128.43x = 1,509,715,498,578,329,088
  5. Step 5: Solve for x
    x = 1,509,715,498,578,329,088/1,981,734,128.43
  6. Step 6: Final answer
    x = 761,815,360.05

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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.