Home / 191,818,123.80-287,727,185.70-70,633,829.40

Finding the Fourth Proportional to 191,818,123.80, 287,727,185.70 and 70,633,829.40

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Solution

The fourth proportional to 191,818,123.80, 287,727,185.70 and 70,633,829.40 is: 105,950,744.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,818,123.80 : 287,727,185.70 = 70,633,829.40 : x
  2. Step 2: Convert to fraction form
    191,818,123.80/287,727,185.70 = 70,633,829.40/x
  3. Step 3: Cross multiply
    191,818,123.80x = 287,727,185.70 × 70,633,829.40
  4. Step 4: Simplify right side
    191,818,123.80x = 20,323,272,948,475,920
  5. Step 5: Solve for x
    x = 20,323,272,948,475,920/191,818,123.80
  6. Step 6: Final answer
    x = 105,950,744.10

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1.5x scale

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.