Home / 739,798,397.40-1,020,913,652.20-400,698,436.60

Finding the Fourth Proportional to 739,798,397.40, 1,020,913,652.20 and 400,698,436.60

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Solution

The fourth proportional to 739,798,397.40, 1,020,913,652.20 and 400,698,436.60 is: 552,959,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,798,397.40 : 1,020,913,652.20 = 400,698,436.60 : x
  2. Step 2: Convert to fraction form
    739,798,397.40/1,020,913,652.20 = 400,698,436.60/x
  3. Step 3: Cross multiply
    739,798,397.40x = 1,020,913,652.20 × 400,698,436.60
  4. Step 4: Simplify right side
    739,798,397.40x = 409,078,504,340,136,192
  5. Step 5: Solve for x
    x = 409,078,504,340,136,192/739,798,397.40
  6. Step 6: Final answer
    x = 552,959,435.68

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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.