Home / 769,824,013.20-1,154,736,019.80-524,936,000.40

Finding the Fourth Proportional to 769,824,013.20, 1,154,736,019.80 and 524,936,000.40

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Solution

The fourth proportional to 769,824,013.20, 1,154,736,019.80 and 524,936,000.40 is: 787,404,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,824,013.20 : 1,154,736,019.80 = 524,936,000.40 : x
  2. Step 2: Convert to fraction form
    769,824,013.20/1,154,736,019.80 = 524,936,000.40/x
  3. Step 3: Cross multiply
    769,824,013.20x = 1,154,736,019.80 × 524,936,000.40
  4. Step 4: Simplify right side
    769,824,013.20x = 606,162,507,751,627,136
  5. Step 5: Solve for x
    x = 606,162,507,751,627,136/769,824,013.20
  6. Step 6: Final answer
    x = 787,404,000.60

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1.5x scale

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.