Home / 910,098,178.29-1,255,578,140.39-528,555,263.22

Finding the Fourth Proportional to 910,098,178.29, 1,255,578,140.39 and 528,555,263.22

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Solution

The fourth proportional to 910,098,178.29, 1,255,578,140.39 and 528,555,263.22 is: 729,198,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,098,178.29 : 1,255,578,140.39 = 528,555,263.22 : x
  2. Step 2: Convert to fraction form
    910,098,178.29/1,255,578,140.39 = 528,555,263.22/x
  3. Step 3: Cross multiply
    910,098,178.29x = 1,255,578,140.39 × 528,555,263.22
  4. Step 4: Simplify right side
    910,098,178.29x = 663,642,434,484,471,808
  5. Step 5: Solve for x
    x = 663,642,434,484,471,808/910,098,178.29
  6. Step 6: Final answer
    x = 729,198,728.57

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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.