Home / 1,007,354,358.60-1,390,134,884.02-561,336,520.64

Finding the Fourth Proportional to 1,007,354,358.60, 1,390,134,884.02 and 561,336,520.64

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Solution

The fourth proportional to 1,007,354,358.60, 1,390,134,884.02 and 561,336,520.64 is: 774,636,524.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,354,358.60 : 1,390,134,884.02 = 561,336,520.64 : x
  2. Step 2: Convert to fraction form
    1,007,354,358.60/1,390,134,884.02 = 561,336,520.64/x
  3. Step 3: Cross multiply
    1,007,354,358.60x = 1,390,134,884.02 × 561,336,520.64
  4. Step 4: Simplify right side
    1,007,354,358.60x = 780,333,479,016,076,672
  5. Step 5: Solve for x
    x = 780,333,479,016,076,672/1,007,354,358.60
  6. Step 6: Final answer
    x = 774,636,524.23

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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.