Home / 191,909,486.70-287,864,230.05-127,286,261.10

Finding the Fourth Proportional to 191,909,486.70, 287,864,230.05 and 127,286,261.10

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Solution

The fourth proportional to 191,909,486.70, 287,864,230.05 and 127,286,261.10 is: 190,929,391.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,909,486.70 : 287,864,230.05 = 127,286,261.10 : x
  2. Step 2: Convert to fraction form
    191,909,486.70/287,864,230.05 = 127,286,261.10/x
  3. Step 3: Cross multiply
    191,909,486.70x = 287,864,230.05 × 127,286,261.10
  4. Step 4: Simplify right side
    191,909,486.70x = 36,641,161,547,494,768
  5. Step 5: Solve for x
    x = 36,641,161,547,494,768/191,909,486.70
  6. Step 6: Final answer
    x = 190,929,391.65

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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.