Home / 191,651,513.40-287,595,368.10-76,624,061.40

Finding the Fourth Proportional to 191,651,513.40, 287,595,368.10 and 76,624,061.40

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Solution

The fourth proportional to 191,651,513.40, 287,595,368.10 and 76,624,061.40 is: 114,983,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,651,513.40 : 287,595,368.10 = 76,624,061.40 : x
  2. Step 2: Convert to fraction form
    191,651,513.40/287,595,368.10 = 76,624,061.40/x
  3. Step 3: Cross multiply
    191,651,513.40x = 287,595,368.10 × 76,624,061.40
  4. Step 4: Simplify right side
    191,651,513.40x = 22,036,725,143,650,004
  5. Step 5: Solve for x
    x = 22,036,725,143,650,004/191,651,513.40
  6. Step 6: Final answer
    x = 114,983,308.78

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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.