Home / 309,258,810.12-463,888,346.58-90,909,167.52

Finding the Fourth Proportional to 309,258,810.12, 463,888,346.58 and 90,909,167.52

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Solution

The fourth proportional to 309,258,810.12, 463,888,346.58 and 90,909,167.52 is: 136,363,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,258,810.12 : 463,888,346.58 = 90,909,167.52 : x
  2. Step 2: Convert to fraction form
    309,258,810.12/463,888,346.58 = 90,909,167.52/x
  3. Step 3: Cross multiply
    309,258,810.12x = 463,888,346.58 × 90,909,167.52
  4. Step 4: Simplify right side
    309,258,810.12x = 42,171,703,409,817,032
  5. Step 5: Solve for x
    x = 42,171,703,409,817,032/309,258,810.12
  6. Step 6: Final answer
    x = 136,363,789.91

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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.