Home / 398,191,707.72-549,537,263.16-219,610,528.20

Finding the Fourth Proportional to 398,191,707.72, 549,537,263.16 and 219,610,528.20

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Solution

The fourth proportional to 398,191,707.72, 549,537,263.16 and 219,610,528.20 is: 303,080,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,191,707.72 : 549,537,263.16 = 219,610,528.20 : x
  2. Step 2: Convert to fraction form
    398,191,707.72/549,537,263.16 = 219,610,528.20/x
  3. Step 3: Cross multiply
    398,191,707.72x = 549,537,263.16 × 219,610,528.20
  4. Step 4: Simplify right side
    398,191,707.72x = 120,684,168,628,149,984
  5. Step 5: Solve for x
    x = 120,684,168,628,149,984/398,191,707.72
  6. Step 6: Final answer
    x = 303,080,567.20

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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.