Home / 472,147,698.40-708,221,547.60-165,399,953.20

Finding the Fourth Proportional to 472,147,698.40, 708,221,547.60 and 165,399,953.20

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Solution

The fourth proportional to 472,147,698.40, 708,221,547.60 and 165,399,953.20 is: 248,099,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,147,698.40 : 708,221,547.60 = 165,399,953.20 : x
  2. Step 2: Convert to fraction form
    472,147,698.40/708,221,547.60 = 165,399,953.20/x
  3. Step 3: Cross multiply
    472,147,698.40x = 708,221,547.60 × 165,399,953.20
  4. Step 4: Simplify right side
    472,147,698.40x = 117,139,810,828,271,568
  5. Step 5: Solve for x
    x = 117,139,810,828,271,568/472,147,698.40
  6. Step 6: Final answer
    x = 248,099,929.80

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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.