Home / 300,128,001.60-450,192,002.40-249,109,665.60

Finding the Fourth Proportional to 300,128,001.60, 450,192,002.40 and 249,109,665.60

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Solution

The fourth proportional to 300,128,001.60, 450,192,002.40 and 249,109,665.60 is: 373,664,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,128,001.60 : 450,192,002.40 = 249,109,665.60 : x
  2. Step 2: Convert to fraction form
    300,128,001.60/450,192,002.40 = 249,109,665.60/x
  3. Step 3: Cross multiply
    300,128,001.60x = 450,192,002.40 × 249,109,665.60
  4. Step 4: Simplify right side
    300,128,001.60x = 112,147,179,173,658,384
  5. Step 5: Solve for x
    x = 112,147,179,173,658,384/300,128,001.60
  6. Step 6: Final answer
    x = 373,664,498.40

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1.5x scale

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.