Home / 819,072,341.20-1,228,608,511.80-528,834,696.40

Finding the Fourth Proportional to 819,072,341.20, 1,228,608,511.80 and 528,834,696.40

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Solution

The fourth proportional to 819,072,341.20, 1,228,608,511.80 and 528,834,696.40 is: 793,252,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,072,341.20 : 1,228,608,511.80 = 528,834,696.40 : x
  2. Step 2: Convert to fraction form
    819,072,341.20/1,228,608,511.80 = 528,834,696.40/x
  3. Step 3: Cross multiply
    819,072,341.20x = 1,228,608,511.80 × 528,834,696.40
  4. Step 4: Simplify right side
    819,072,341.20x = 649,730,809,332,208,768
  5. Step 5: Solve for x
    x = 649,730,809,332,208,768/819,072,341.20
  6. Step 6: Final answer
    x = 793,252,044.60

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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.