Home / 889,225,266.69-1,227,688,651.17-572,236,257.42

Finding the Fourth Proportional to 889,225,266.69, 1,227,688,651.17 and 572,236,257.42

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Solution

The fourth proportional to 889,225,266.69, 1,227,688,651.17 and 572,236,257.42 is: 790,044,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,225,266.69 : 1,227,688,651.17 = 572,236,257.42 : x
  2. Step 2: Convert to fraction form
    889,225,266.69/1,227,688,651.17 = 572,236,257.42/x
  3. Step 3: Cross multiply
    889,225,266.69x = 1,227,688,651.17 × 572,236,257.42
  4. Step 4: Simplify right side
    889,225,266.69x = 702,527,959,022,528,640
  5. Step 5: Solve for x
    x = 702,527,959,022,528,640/889,225,266.69
  6. Step 6: Final answer
    x = 790,044,981.11

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Double scale
Find fourth proportional to 889,225,267.69, 1,227,688,652.55 and 572,236,258.42
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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.