Home / 861,293,205.60-1,291,939,808.40-800,071,202.40

Finding the Fourth Proportional to 861,293,205.60, 1,291,939,808.40 and 800,071,202.40

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Solution

The fourth proportional to 861,293,205.60, 1,291,939,808.40 and 800,071,202.40 is: 1,200,106,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,293,205.60 : 1,291,939,808.40 = 800,071,202.40 : x
  2. Step 2: Convert to fraction form
    861,293,205.60/1,291,939,808.40 = 800,071,202.40/x
  3. Step 3: Cross multiply
    861,293,205.60x = 1,291,939,808.40 × 800,071,202.40
  4. Step 4: Simplify right side
    861,293,205.60x = 1,033,643,835,935,013,632
  5. Step 5: Solve for x
    x = 1,033,643,835,935,013,632/861,293,205.60
  6. Step 6: Final answer
    x = 1,200,106,803.60

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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.