Home / 411,428,508,941.22-617,144,843,686.45-128,423,628,893.22

Finding the Fourth Proportional to 411,428,508,941.22, 617,144,843,686.45 and 128,423,628,893.22

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Solution

The fourth proportional to 411,428,508,941.22, 617,144,843,686.45 and 128,423,628,893.22 is: 192,636,092,678.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,428,508,941.22 : 617,144,843,686.45 = 128,423,628,893.22 : x
  2. Step 2: Convert to fraction form
    411,428,508,941.22/617,144,843,686.45 = 128,423,628,893.22/x
  3. Step 3: Cross multiply
    411,428,508,941.22x = 617,144,843,686.45 × 128,423,628,893.22
  4. Step 4: Simplify right side
    411,428,508,941.22x = 79,255,980,378,952,919,154,688
  5. Step 5: Solve for x
    x = 79,255,980,378,952,919,154,688/411,428,508,941.22
  6. Step 6: Final answer
    x = 192,636,092,678.44

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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.