Home / 841,103,999.40-1,261,655,999.10-478,306,943.40

Finding the Fourth Proportional to 841,103,999.40, 1,261,655,999.10 and 478,306,943.40

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Solution

The fourth proportional to 841,103,999.40, 1,261,655,999.10 and 478,306,943.40 is: 717,460,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,103,999.40 : 1,261,655,999.10 = 478,306,943.40 : x
  2. Step 2: Convert to fraction form
    841,103,999.40/1,261,655,999.10 = 478,306,943.40/x
  3. Step 3: Cross multiply
    841,103,999.40x = 1,261,655,999.10 × 478,306,943.40
  4. Step 4: Simplify right side
    841,103,999.40x = 603,458,824,551,794,048
  5. Step 5: Solve for x
    x = 603,458,824,551,794,048/841,103,999.40
  6. Step 6: Final answer
    x = 717,460,415.10

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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.