Home / 191,816,187.40-287,724,281.10-84,110,811.40

Finding the Fourth Proportional to 191,816,187.40, 287,724,281.10 and 84,110,811.40

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Solution

The fourth proportional to 191,816,187.40, 287,724,281.10 and 84,110,811.40 is: 126,166,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,816,187.40 : 287,724,281.10 = 84,110,811.40 : x
  2. Step 2: Convert to fraction form
    191,816,187.40/287,724,281.10 = 84,110,811.40/x
  3. Step 3: Cross multiply
    191,816,187.40x = 287,724,281.10 × 84,110,811.40
  4. Step 4: Simplify right side
    191,816,187.40x = 24,200,722,742,802,688
  5. Step 5: Solve for x
    x = 24,200,722,742,802,688/191,816,187.40
  6. Step 6: Final answer
    x = 126,166,217.10

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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.