Home / 191,909,382.60-287,438,921.10-166,400,214.60

Finding the Fourth Proportional to 191,909,382.60, 287,438,921.10 and 166,400,214.60

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Solution

The fourth proportional to 191,909,382.60, 287,438,921.10 and 166,400,214.60 is: 249,231,681.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,909,382.60 : 287,438,921.10 = 166,400,214.60 : x
  2. Step 2: Convert to fraction form
    191,909,382.60/287,438,921.10 = 166,400,214.60/x
  3. Step 3: Cross multiply
    191,909,382.60x = 287,438,921.10 × 166,400,214.60
  4. Step 4: Simplify right side
    191,909,382.60x = 47,829,898,155,432,472
  5. Step 5: Solve for x
    x = 47,829,898,155,432,472/191,909,382.60
  6. Step 6: Final answer
    x = 249,231,681.68

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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.