Home / 129,784,557.26-178,911,875.30-98,790,743.18

Finding the Fourth Proportional to 129,784,557.26, 178,911,875.30 and 98,790,743.18

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Solution

The fourth proportional to 129,784,557.26, 178,911,875.30 and 98,790,743.18 is: 136,185,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,784,557.26 : 178,911,875.30 = 98,790,743.18 : x
  2. Step 2: Convert to fraction form
    129,784,557.26/178,911,875.30 = 98,790,743.18/x
  3. Step 3: Cross multiply
    129,784,557.26x = 178,911,875.30 × 98,790,743.18
  4. Step 4: Simplify right side
    129,784,557.26x = 17,674,837,124,614,488
  5. Step 5: Solve for x
    x = 17,674,837,124,614,488/129,784,557.26
  6. Step 6: Final answer
    x = 136,185,980.04

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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.