Home / 1,248,317,985.30-1,722,706,655.85-712,458,902.40

Finding the Fourth Proportional to 1,248,317,985.30, 1,722,706,655.85 and 712,458,902.40

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Solution

The fourth proportional to 1,248,317,985.30, 1,722,706,655.85 and 712,458,902.40 is: 983,209,172.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,317,985.30 : 1,722,706,655.85 = 712,458,902.40 : x
  2. Step 2: Convert to fraction form
    1,248,317,985.30/1,722,706,655.85 = 712,458,902.40/x
  3. Step 3: Cross multiply
    1,248,317,985.30x = 1,722,706,655.85 × 712,458,902.40
  4. Step 4: Simplify right side
    1,248,317,985.30x = 1,227,357,693,184,065,536
  5. Step 5: Solve for x
    x = 1,227,357,693,184,065,536/1,248,317,985.30
  6. Step 6: Final answer
    x = 983,209,172.37

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Double scale
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1.5x scale

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.