Home / 787,933,828.69-1,087,371,807.57-430,721,344.15

Finding the Fourth Proportional to 787,933,828.69, 1,087,371,807.57 and 430,721,344.15

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Solution

The fourth proportional to 787,933,828.69, 1,087,371,807.57 and 430,721,344.15 is: 594,408,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,933,828.69 : 1,087,371,807.57 = 430,721,344.15 : x
  2. Step 2: Convert to fraction form
    787,933,828.69/1,087,371,807.57 = 430,721,344.15/x
  3. Step 3: Cross multiply
    787,933,828.69x = 1,087,371,807.57 × 430,721,344.15
  4. Step 4: Simplify right side
    787,933,828.69x = 468,354,246,544,647,040
  5. Step 5: Solve for x
    x = 468,354,246,544,647,040/787,933,828.69
  6. Step 6: Final answer
    x = 594,408,095.57

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Double scale
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1.5x scale

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.