Home / 758,238,038.80-1,137,357,058.20-628,991,587.60

Finding the Fourth Proportional to 758,238,038.80, 1,137,357,058.20 and 628,991,587.60

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Solution

The fourth proportional to 758,238,038.80, 1,137,357,058.20 and 628,991,587.60 is: 943,487,381.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,238,038.80 : 1,137,357,058.20 = 628,991,587.60 : x
  2. Step 2: Convert to fraction form
    758,238,038.80/1,137,357,058.20 = 628,991,587.60/x
  3. Step 3: Cross multiply
    758,238,038.80x = 1,137,357,058.20 × 628,991,587.60
  4. Step 4: Simplify right side
    758,238,038.80x = 715,388,021,705,283,712
  5. Step 5: Solve for x
    x = 715,388,021,705,283,712/758,238,038.80
  6. Step 6: Final answer
    x = 943,487,381.40

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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.