Home / 713,952,009.80-1,070,928,014.70-386,300,918.60

Finding the Fourth Proportional to 713,952,009.80, 1,070,928,014.70 and 386,300,918.60

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Solution

The fourth proportional to 713,952,009.80, 1,070,928,014.70 and 386,300,918.60 is: 579,451,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,952,009.80 : 1,070,928,014.70 = 386,300,918.60 : x
  2. Step 2: Convert to fraction form
    713,952,009.80/1,070,928,014.70 = 386,300,918.60/x
  3. Step 3: Cross multiply
    713,952,009.80x = 1,070,928,014.70 × 386,300,918.60
  4. Step 4: Simplify right side
    713,952,009.80x = 413,700,475,833,084,352
  5. Step 5: Solve for x
    x = 413,700,475,833,084,352/713,952,009.80
  6. Step 6: Final answer
    x = 579,451,377.90

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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.