Home / 1,959,128,486.40-2,703,495,248.64-1,216,556,618.88

Finding the Fourth Proportional to 1,959,128,486.40, 2,703,495,248.64 and 1,216,556,618.88

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Solution

The fourth proportional to 1,959,128,486.40, 2,703,495,248.64 and 1,216,556,618.88 is: 1,678,784,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959,128,486.40 : 2,703,495,248.64 = 1,216,556,618.88 : x
  2. Step 2: Convert to fraction form
    1,959,128,486.40/2,703,495,248.64 = 1,216,556,618.88/x
  3. Step 3: Cross multiply
    1,959,128,486.40x = 2,703,495,248.64 × 1,216,556,618.88
  4. Step 4: Simplify right side
    1,959,128,486.40x = 3,288,955,038,843,623,424
  5. Step 5: Solve for x
    x = 3,288,955,038,843,623,424/1,959,128,486.40
  6. Step 6: Final answer
    x = 1,678,784,756.42

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1.5x scale

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.