Home / 753,431,118.40-1,130,868,290.40-390,186,164.80

Finding the Fourth Proportional to 753,431,118.40, 1,130,868,290.40 and 390,186,164.80

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Solution

The fourth proportional to 753,431,118.40, 1,130,868,290.40 and 390,186,164.80 is: 585,652,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,431,118.40 : 1,130,868,290.40 = 390,186,164.80 : x
  2. Step 2: Convert to fraction form
    753,431,118.40/1,130,868,290.40 = 390,186,164.80/x
  3. Step 3: Cross multiply
    753,431,118.40x = 1,130,868,290.40 × 390,186,164.80
  4. Step 4: Simplify right side
    753,431,118.40x = 441,249,161,125,108,736
  5. Step 5: Solve for x
    x = 441,249,161,125,108,736/753,431,118.40
  6. Step 6: Final answer
    x = 585,652,955.33

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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.