Home / 85,705,742,795.81-128,608,744,835.29-31,960,008,785.59

Finding the Fourth Proportional to 85,705,742,795.81, 128,608,744,835.29 and 31,960,008,785.59

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Solution

The fourth proportional to 85,705,742,795.81, 128,608,744,835.29 and 31,960,008,785.59 is: 47,958,707,091.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,705,742,795.81 : 128,608,744,835.29 = 31,960,008,785.59 : x
  2. Step 2: Convert to fraction form
    85,705,742,795.81/128,608,744,835.29 = 31,960,008,785.59/x
  3. Step 3: Cross multiply
    85,705,742,795.81x = 128,608,744,835.29 × 31,960,008,785.59
  4. Step 4: Simplify right side
    85,705,742,795.81x = 4,110,336,614,839,185,047,552
  5. Step 5: Solve for x
    x = 4,110,336,614,839,185,047,552/85,705,742,795.81
  6. Step 6: Final answer
    x = 47,958,707,091.92

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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.