Home / 317,087,999.20-475,631,998.80-208,598,802.40

Finding the Fourth Proportional to 317,087,999.20, 475,631,998.80 and 208,598,802.40

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Solution

The fourth proportional to 317,087,999.20, 475,631,998.80 and 208,598,802.40 is: 312,898,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,087,999.20 : 475,631,998.80 = 208,598,802.40 : x
  2. Step 2: Convert to fraction form
    317,087,999.20/475,631,998.80 = 208,598,802.40/x
  3. Step 3: Cross multiply
    317,087,999.20x = 475,631,998.80 × 208,598,802.40
  4. Step 4: Simplify right side
    317,087,999.20x = 99,216,265,332,798,240
  5. Step 5: Solve for x
    x = 99,216,265,332,798,240/317,087,999.20
  6. Step 6: Final answer
    x = 312,898,203.60

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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.