Home / 768,308,527.72-1,152,385,231.71-520,902,333.16

Finding the Fourth Proportional to 768,308,527.72, 1,152,385,231.71 and 520,902,333.16

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Solution

The fourth proportional to 768,308,527.72, 1,152,385,231.71 and 520,902,333.16 is: 781,300,915.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,308,527.72 : 1,152,385,231.71 = 520,902,333.16 : x
  2. Step 2: Convert to fraction form
    768,308,527.72/1,152,385,231.71 = 520,902,333.16/x
  3. Step 3: Cross multiply
    768,308,527.72x = 1,152,385,231.71 × 520,902,333.16
  4. Step 4: Simplify right side
    768,308,527.72x = 600,280,155,893,985,280
  5. Step 5: Solve for x
    x = 600,280,155,893,985,280/768,308,527.72
  6. Step 6: Final answer
    x = 781,300,915.24

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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.