Home / 152,169,461.73-210,013,665.84-85,213,920.78

Finding the Fourth Proportional to 152,169,461.73, 210,013,665.84 and 85,213,920.78

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Solution

The fourth proportional to 152,169,461.73, 210,013,665.84 and 85,213,920.78 is: 117,606,303.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,169,461.73 : 210,013,665.84 = 85,213,920.78 : x
  2. Step 2: Convert to fraction form
    152,169,461.73/210,013,665.84 = 85,213,920.78/x
  3. Step 3: Cross multiply
    152,169,461.73x = 210,013,665.84 × 85,213,920.78
  4. Step 4: Simplify right side
    152,169,461.73x = 17,896,087,883,607,152
  5. Step 5: Solve for x
    x = 17,896,087,883,607,152/152,169,461.73
  6. Step 6: Final answer
    x = 117,606,303.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.