Home / 459,735,879.40-689,602,004.70-136,619,751.40

Finding the Fourth Proportional to 459,735,879.40, 689,602,004.70 and 136,619,751.40

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Solution

The fourth proportional to 459,735,879.40, 689,602,004.70 and 136,619,751.40 is: 204,929,087.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,735,879.40 : 689,602,004.70 = 136,619,751.40 : x
  2. Step 2: Convert to fraction form
    459,735,879.40/689,602,004.70 = 136,619,751.40/x
  3. Step 3: Cross multiply
    459,735,879.40x = 689,602,004.70 × 136,619,751.40
  4. Step 4: Simplify right side
    459,735,879.40x = 94,213,254,447,055,648
  5. Step 5: Solve for x
    x = 94,213,254,447,055,648/459,735,879.40
  6. Step 6: Final answer
    x = 204,929,087.91

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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.