Home / 1,038,006,428.90-1,557,009,643.35-310,995,140.90

Finding the Fourth Proportional to 1,038,006,428.90, 1,557,009,643.35 and 310,995,140.90

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Solution

The fourth proportional to 1,038,006,428.90, 1,557,009,643.35 and 310,995,140.90 is: 466,492,711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,006,428.90 : 1,557,009,643.35 = 310,995,140.90 : x
  2. Step 2: Convert to fraction form
    1,038,006,428.90/1,557,009,643.35 = 310,995,140.90/x
  3. Step 3: Cross multiply
    1,038,006,428.90x = 1,557,009,643.35 × 310,995,140.90
  4. Step 4: Simplify right side
    1,038,006,428.90x = 484,222,433,416,291,904
  5. Step 5: Solve for x
    x = 484,222,433,416,291,904/1,038,006,428.90
  6. Step 6: Final answer
    x = 466,492,711.35

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Double scale
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Similar ratio
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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.