Home / 522,302,946.66-720,778,042.62-287,348,566.77

Finding the Fourth Proportional to 522,302,946.66, 720,778,042.62 and 287,348,566.77

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Solution

The fourth proportional to 522,302,946.66, 720,778,042.62 and 287,348,566.77 is: 396,541,009.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,302,946.66 : 720,778,042.62 = 287,348,566.77 : x
  2. Step 2: Convert to fraction form
    522,302,946.66/720,778,042.62 = 287,348,566.77/x
  3. Step 3: Cross multiply
    522,302,946.66x = 720,778,042.62 × 287,348,566.77
  4. Step 4: Simplify right side
    522,302,946.66x = 207,114,537,506,142,976
  5. Step 5: Solve for x
    x = 207,114,537,506,142,976/522,302,946.66
  6. Step 6: Final answer
    x = 396,541,009.06

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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.