Home / 1,038,563,426.90-1,557,845,140.35-311,552,138.90

Finding the Fourth Proportional to 1,038,563,426.90, 1,557,845,140.35 and 311,552,138.90

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Solution

The fourth proportional to 1,038,563,426.90, 1,557,845,140.35 and 311,552,138.90 is: 467,328,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,563,426.90 : 1,557,845,140.35 = 311,552,138.90 : x
  2. Step 2: Convert to fraction form
    1,038,563,426.90/1,557,845,140.35 = 311,552,138.90/x
  3. Step 3: Cross multiply
    1,038,563,426.90x = 1,557,845,140.35 × 311,552,138.90
  4. Step 4: Simplify right side
    1,038,563,426.90x = 485,349,985,551,013,120
  5. Step 5: Solve for x
    x = 485,349,985,551,013,120/1,038,563,426.90
  6. Step 6: Final answer
    x = 467,328,208.35

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Double scale
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Similar ratio
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1.5x scale

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.