Home / 397,943,339.34-549,163,986.87-230,778,712.86

Finding the Fourth Proportional to 397,943,339.34, 549,163,986.87 and 230,778,712.86

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Solution

The fourth proportional to 397,943,339.34, 549,163,986.87 and 230,778,712.86 is: 318,475,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,943,339.34 : 549,163,986.87 = 230,778,712.86 : x
  2. Step 2: Convert to fraction form
    397,943,339.34/549,163,986.87 = 230,778,712.86/x
  3. Step 3: Cross multiply
    397,943,339.34x = 549,163,986.87 × 230,778,712.86
  4. Step 4: Simplify right side
    397,943,339.34x = 126,735,358,038,924,544
  5. Step 5: Solve for x
    x = 126,735,358,038,924,544/397,943,339.34
  6. Step 6: Final answer
    x = 318,475,887.17

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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.