Home / 698,279,447.12-1,046,233,848.09-421,348,740.50

Finding the Fourth Proportional to 698,279,447.12, 1,046,233,848.09 and 421,348,740.50

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Solution

The fourth proportional to 698,279,447.12, 1,046,233,848.09 and 421,348,740.50 is: 631,307,875.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,279,447.12 : 1,046,233,848.09 = 421,348,740.50 : x
  2. Step 2: Convert to fraction form
    698,279,447.12/1,046,233,848.09 = 421,348,740.50/x
  3. Step 3: Cross multiply
    698,279,447.12x = 1,046,233,848.09 × 421,348,740.50
  4. Step 4: Simplify right side
    698,279,447.12x = 440,829,314,161,189,824
  5. Step 5: Solve for x
    x = 440,829,314,161,189,824/698,279,447.12
  6. Step 6: Final answer
    x = 631,307,875.35

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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.