Home / 370,290,671.80-555,436,007.70-310,272,393.40

Finding the Fourth Proportional to 370,290,671.80, 555,436,007.70 and 310,272,393.40

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Solution

The fourth proportional to 370,290,671.80, 555,436,007.70 and 310,272,393.40 is: 465,408,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,290,671.80 : 555,436,007.70 = 310,272,393.40 : x
  2. Step 2: Convert to fraction form
    370,290,671.80/555,436,007.70 = 310,272,393.40/x
  3. Step 3: Cross multiply
    370,290,671.80x = 555,436,007.70 × 310,272,393.40
  4. Step 4: Simplify right side
    370,290,671.80x = 172,336,459,489,619,840
  5. Step 5: Solve for x
    x = 172,336,459,489,619,840/370,290,671.80
  6. Step 6: Final answer
    x = 465,408,590.10

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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.