Home / 287,668,895.68-397,091,032.55-188,556,030.26

Finding the Fourth Proportional to 287,668,895.68, 397,091,032.55 and 188,556,030.26

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Solution

The fourth proportional to 287,668,895.68, 397,091,032.55 and 188,556,030.26 is: 260,278,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,668,895.68 : 397,091,032.55 = 188,556,030.26 : x
  2. Step 2: Convert to fraction form
    287,668,895.68/397,091,032.55 = 188,556,030.26/x
  3. Step 3: Cross multiply
    287,668,895.68x = 397,091,032.55 × 188,556,030.26
  4. Step 4: Simplify right side
    287,668,895.68x = 74,873,908,748,529,664
  5. Step 5: Solve for x
    x = 74,873,908,748,529,664/287,668,895.68
  6. Step 6: Final answer
    x = 260,278,083.15

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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.