Home / 145,541,703.40-218,312,555.10-143,628,515.80

Finding the Fourth Proportional to 145,541,703.40, 218,312,555.10 and 143,628,515.80

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Solution

The fourth proportional to 145,541,703.40, 218,312,555.10 and 143,628,515.80 is: 215,442,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,541,703.40 : 218,312,555.10 = 143,628,515.80 : x
  2. Step 2: Convert to fraction form
    145,541,703.40/218,312,555.10 = 143,628,515.80/x
  3. Step 3: Cross multiply
    145,541,703.40x = 218,312,555.10 × 143,628,515.80
  4. Step 4: Simplify right side
    145,541,703.40x = 31,355,908,269,518,724
  5. Step 5: Solve for x
    x = 31,355,908,269,518,724/145,541,703.40
  6. Step 6: Final answer
    x = 215,442,773.70

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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.