Home / 769,824,005.20-1,154,736,007.80-524,935,992.40

Finding the Fourth Proportional to 769,824,005.20, 1,154,736,007.80 and 524,935,992.40

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Solution

The fourth proportional to 769,824,005.20, 1,154,736,007.80 and 524,935,992.40 is: 787,403,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,824,005.20 : 1,154,736,007.80 = 524,935,992.40 : x
  2. Step 2: Convert to fraction form
    769,824,005.20/1,154,736,007.80 = 524,935,992.40/x
  3. Step 3: Cross multiply
    769,824,005.20x = 1,154,736,007.80 × 524,935,992.40
  4. Step 4: Simplify right side
    769,824,005.20x = 606,162,492,214,507,136
  5. Step 5: Solve for x
    x = 606,162,492,214,507,136/769,824,005.20
  6. Step 6: Final answer
    x = 787,403,988.60

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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.