Home / 1,429,002,066.84-2,143,115,941.86-393,616,711.32

Finding the Fourth Proportional to 1,429,002,066.84, 2,143,115,941.86 and 393,616,711.32

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Solution

The fourth proportional to 1,429,002,066.84, 2,143,115,941.86 and 393,616,711.32 is: 590,318,424.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,002,066.84 : 2,143,115,941.86 = 393,616,711.32 : x
  2. Step 2: Convert to fraction form
    1,429,002,066.84/2,143,115,941.86 = 393,616,711.32/x
  3. Step 3: Cross multiply
    1,429,002,066.84x = 2,143,115,941.86 × 393,616,711.32
  4. Step 4: Simplify right side
    1,429,002,066.84x = 843,566,249,012,397,440
  5. Step 5: Solve for x
    x = 843,566,249,012,397,440/1,429,002,066.84
  6. Step 6: Final answer
    x = 590,318,424.72

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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.