Home / 261,528,002.72-360,908,642.40-151,583,488.64

Finding the Fourth Proportional to 261,528,002.72, 360,908,642.40 and 151,583,488.64

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Solution

The fourth proportional to 261,528,002.72, 360,908,642.40 and 151,583,488.64 is: 209,185,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,528,002.72 : 360,908,642.40 = 151,583,488.64 : x
  2. Step 2: Convert to fraction form
    261,528,002.72/360,908,642.40 = 151,583,488.64/x
  3. Step 3: Cross multiply
    261,528,002.72x = 360,908,642.40 × 151,583,488.64
  4. Step 4: Simplify right side
    261,528,002.72x = 54,707,791,095,318,216
  5. Step 5: Solve for x
    x = 54,707,791,095,318,216/261,528,002.72
  6. Step 6: Final answer
    x = 209,185,213.54

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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.