Home / 307,886,665.68-424,543,128.48-196,200,585

Finding the Fourth Proportional to 307,886,665.68, 424,543,128.48 and 196,200,585

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Solution

The fourth proportional to 307,886,665.68, 424,543,128.48 and 196,200,585 is: 270,539,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,886,665.68 : 424,543,128.48 = 196,200,585 : x
  2. Step 2: Convert to fraction form
    307,886,665.68/424,543,128.48 = 196,200,585/x
  3. Step 3: Cross multiply
    307,886,665.68x = 424,543,128.48 × 196,200,585
  4. Step 4: Simplify right side
    307,886,665.68x = 83,295,610,165,506,160
  5. Step 5: Solve for x
    x = 83,295,610,165,506,160/307,886,665.68
  6. Step 6: Final answer
    x = 270,539,842.90

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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.