Home / 822,578,858.51-1,135,158,824.72-470,162,416.03

Finding the Fourth Proportional to 822,578,858.51, 1,135,158,824.72 and 470,162,416.03

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Solution

The fourth proportional to 822,578,858.51, 1,135,158,824.72 and 470,162,416.03 is: 648,824,134.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,578,858.51 : 1,135,158,824.72 = 470,162,416.03 : x
  2. Step 2: Convert to fraction form
    822,578,858.51/1,135,158,824.72 = 470,162,416.03/x
  3. Step 3: Cross multiply
    822,578,858.51x = 1,135,158,824.72 × 470,162,416.03
  4. Step 4: Simplify right side
    822,578,858.51x = 533,709,015,606,468,032
  5. Step 5: Solve for x
    x = 533,709,015,606,468,032/822,578,858.51
  6. Step 6: Final answer
    x = 648,824,134.11

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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.