Home / 208,018,699.20-287,070,450.56-118,708,864.88

Finding the Fourth Proportional to 208,018,699.20, 287,070,450.56 and 118,708,864.88

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Solution

The fourth proportional to 208,018,699.20, 287,070,450.56 and 118,708,864.88 is: 163,820,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,018,699.20 : 287,070,450.56 = 118,708,864.88 : x
  2. Step 2: Convert to fraction form
    208,018,699.20/287,070,450.56 = 118,708,864.88/x
  3. Step 3: Cross multiply
    208,018,699.20x = 287,070,450.56 × 118,708,864.88
  4. Step 4: Simplify right side
    208,018,699.20x = 34,077,807,326,567,760
  5. Step 5: Solve for x
    x = 34,077,807,326,567,760/208,018,699.20
  6. Step 6: Final answer
    x = 163,820,884.65

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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.