Home / 1,138,003,703.48-1,570,479,613.45-636,233,628.60

Finding the Fourth Proportional to 1,138,003,703.48, 1,570,479,613.45 and 636,233,628.60

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Solution

The fourth proportional to 1,138,003,703.48, 1,570,479,613.45 and 636,233,628.60 is: 878,021,697.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,003,703.48 : 1,570,479,613.45 = 636,233,628.60 : x
  2. Step 2: Convert to fraction form
    1,138,003,703.48/1,570,479,613.45 = 636,233,628.60/x
  3. Step 3: Cross multiply
    1,138,003,703.48x = 1,570,479,613.45 × 636,233,628.60
  4. Step 4: Simplify right side
    1,138,003,703.48x = 999,191,943,106,028,288
  5. Step 5: Solve for x
    x = 999,191,943,106,028,288/1,138,003,703.48
  6. Step 6: Final answer
    x = 878,021,697.16

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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.