Home / 660,482,799.85-910,717,423.23-422,012,929.51

Finding the Fourth Proportional to 660,482,799.85, 910,717,423.23 and 422,012,929.51

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Solution

The fourth proportional to 660,482,799.85, 910,717,423.23 and 422,012,929.51 is: 581,899,373.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,482,799.85 : 910,717,423.23 = 422,012,929.51 : x
  2. Step 2: Convert to fraction form
    660,482,799.85/910,717,423.23 = 422,012,929.51/x
  3. Step 3: Cross multiply
    660,482,799.85x = 910,717,423.23 × 422,012,929.51
  4. Step 4: Simplify right side
    660,482,799.85x = 384,334,527,733,090,816
  5. Step 5: Solve for x
    x = 384,334,527,733,090,816/660,482,799.85
  6. Step 6: Final answer
    x = 581,899,373.94

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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.