Home / 191,506,719.40-287,260,079.10-133,056,082.60

Finding the Fourth Proportional to 191,506,719.40, 287,260,079.10 and 133,056,082.60

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Solution

The fourth proportional to 191,506,719.40, 287,260,079.10 and 133,056,082.60 is: 199,584,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,506,719.40 : 287,260,079.10 = 133,056,082.60 : x
  2. Step 2: Convert to fraction form
    191,506,719.40/287,260,079.10 = 133,056,082.60/x
  3. Step 3: Cross multiply
    191,506,719.40x = 287,260,079.10 × 133,056,082.60
  4. Step 4: Simplify right side
    191,506,719.40x = 38,221,700,812,412,136
  5. Step 5: Solve for x
    x = 38,221,700,812,412,136/191,506,719.40
  6. Step 6: Final answer
    x = 199,584,123.90

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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.