Home / 133,117,545.60-199,974,916.80-128,041,372.80

Finding the Fourth Proportional to 133,117,545.60, 199,974,916.80 and 128,041,372.80

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Solution

The fourth proportional to 133,117,545.60, 199,974,916.80 and 128,041,372.80 is: 192,349,271.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,117,545.60 : 199,974,916.80 = 128,041,372.80 : x
  2. Step 2: Convert to fraction form
    133,117,545.60/199,974,916.80 = 128,041,372.80/x
  3. Step 3: Cross multiply
    133,117,545.60x = 199,974,916.80 × 128,041,372.80
  4. Step 4: Simplify right side
    133,117,545.60x = 25,605,062,872,637,784
  5. Step 5: Solve for x
    x = 25,605,062,872,637,784/133,117,545.60
  6. Step 6: Final answer
    x = 192,349,271.14

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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.