Home / 260,554,152.60-390,843,797.77-85,673,314.71

Finding the Fourth Proportional to 260,554,152.60, 390,843,797.77 and 85,673,314.71

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Solution

The fourth proportional to 260,554,152.60, 390,843,797.77 and 85,673,314.71 is: 128,514,104.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,554,152.60 : 390,843,797.77 = 85,673,314.71 : x
  2. Step 2: Convert to fraction form
    260,554,152.60/390,843,797.77 = 85,673,314.71/x
  3. Step 3: Cross multiply
    260,554,152.60x = 390,843,797.77 × 85,673,314.71
  4. Step 4: Simplify right side
    260,554,152.60x = 33,484,883,688,908,752
  5. Step 5: Solve for x
    x = 33,484,883,688,908,752/260,554,152.60
  6. Step 6: Final answer
    x = 128,514,104.86

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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.