Home / 679,079,888.40-1,018,619,832.60-417,571,058.33

Finding the Fourth Proportional to 679,079,888.40, 1,018,619,832.60 and 417,571,058.33

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Solution

The fourth proportional to 679,079,888.40, 1,018,619,832.60 and 417,571,058.33 is: 626,356,587.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,079,888.40 : 1,018,619,832.60 = 417,571,058.33 : x
  2. Step 2: Convert to fraction form
    679,079,888.40/1,018,619,832.60 = 417,571,058.33/x
  3. Step 3: Cross multiply
    679,079,888.40x = 1,018,619,832.60 × 417,571,058.33
  4. Step 4: Simplify right side
    679,079,888.40x = 425,346,161,529,616,320
  5. Step 5: Solve for x
    x = 425,346,161,529,616,320/679,079,888.40
  6. Step 6: Final answer
    x = 626,356,587.49

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1.5x scale

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.