Home / 15,700,856,965.20-21,667,249,973.46-8,564,426,297.28

Finding the Fourth Proportional to 15,700,856,965.20, 21,667,249,973.46 and 8,564,426,297.28

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Solution

The fourth proportional to 15,700,856,965.20, 21,667,249,973.46 and 8,564,426,297.28 is: 11,818,945,034.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700,856,965.20 : 21,667,249,973.46 = 8,564,426,297.28 : x
  2. Step 2: Convert to fraction form
    15,700,856,965.20/21,667,249,973.46 = 8,564,426,297.28/x
  3. Step 3: Cross multiply
    15,700,856,965.20x = 21,667,249,973.46 × 8,564,426,297.28
  4. Step 4: Simplify right side
    15,700,856,965.20x = 185,567,565,462,440,181,760
  5. Step 5: Solve for x
    x = 185,567,565,462,440,181,760/15,700,856,965.20
  6. Step 6: Final answer
    x = 11,818,945,034.26

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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.