Home / 398,309,179,250.22-549,668,323,448.20-215,406,280,894.98

Finding the Fourth Proportional to 398,309,179,250.22, 549,668,323,448.20 and 215,406,280,894.98

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Solution

The fourth proportional to 398,309,179,250.22, 549,668,323,448.20 and 215,406,280,894.98 is: 297,261,563,247.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,309,179,250.22 : 549,668,323,448.20 = 215,406,280,894.98 : x
  2. Step 2: Convert to fraction form
    398,309,179,250.22/549,668,323,448.20 = 215,406,280,894.98/x
  3. Step 3: Cross multiply
    398,309,179,250.22x = 549,668,323,448.20 × 215,406,280,894.98
  4. Step 4: Simplify right side
    398,309,179,250.22x = 118,402,009,279,755,701,977,088
  5. Step 5: Solve for x
    x = 118,402,009,279,755,701,977,088/398,309,179,250.22
  6. Step 6: Final answer
    x = 297,261,563,247.52

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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.