Home / 144,152,275.32-198,947,618.22-81,431,018.01

Finding the Fourth Proportional to 144,152,275.32, 198,947,618.22 and 81,431,018.01

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Solution

The fourth proportional to 144,152,275.32, 198,947,618.22 and 81,431,018.01 is: 112,384,678.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,152,275.32 : 198,947,618.22 = 81,431,018.01 : x
  2. Step 2: Convert to fraction form
    144,152,275.32/198,947,618.22 = 81,431,018.01/x
  3. Step 3: Cross multiply
    144,152,275.32x = 198,947,618.22 × 81,431,018.01
  4. Step 4: Simplify right side
    144,152,275.32x = 16,200,507,082,319,426
  5. Step 5: Solve for x
    x = 16,200,507,082,319,426/144,152,275.32
  6. Step 6: Final answer
    x = 112,384,678.26

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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.