Home / 904,578,647.40-1,356,867,971.10-812,745,642.60

Finding the Fourth Proportional to 904,578,647.40, 1,356,867,971.10 and 812,745,642.60

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Solution

The fourth proportional to 904,578,647.40, 1,356,867,971.10 and 812,745,642.60 is: 1,219,118,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,578,647.40 : 1,356,867,971.10 = 812,745,642.60 : x
  2. Step 2: Convert to fraction form
    904,578,647.40/1,356,867,971.10 = 812,745,642.60/x
  3. Step 3: Cross multiply
    904,578,647.40x = 1,356,867,971.10 × 812,745,642.60
  4. Step 4: Simplify right side
    904,578,647.40x = 1,102,788,531,095,027,712
  5. Step 5: Solve for x
    x = 1,102,788,531,095,027,712/904,578,647.40
  6. Step 6: Final answer
    x = 1,219,118,463.90

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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.