Home / 640,617,015.60-960,925,523.40-435,032,017.20

Finding the Fourth Proportional to 640,617,015.60, 960,925,523.40 and 435,032,017.20

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Solution

The fourth proportional to 640,617,015.60, 960,925,523.40 and 435,032,017.20 is: 652,548,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,617,015.60 : 960,925,523.40 = 435,032,017.20 : x
  2. Step 2: Convert to fraction form
    640,617,015.60/960,925,523.40 = 435,032,017.20/x
  3. Step 3: Cross multiply
    640,617,015.60x = 960,925,523.40 × 435,032,017.20
  4. Step 4: Simplify right side
    640,617,015.60x = 418,033,368,823,667,776
  5. Step 5: Solve for x
    x = 418,033,368,823,667,776/640,617,015.60
  6. Step 6: Final answer
    x = 652,548,025.80

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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.