Home / 530,118,010.64-731,554,120.68-310,138,703.12

Finding the Fourth Proportional to 530,118,010.64, 731,554,120.68 and 310,138,703.12

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Solution

The fourth proportional to 530,118,010.64, 731,554,120.68 and 310,138,703.12 is: 427,986,300.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,118,010.64 : 731,554,120.68 = 310,138,703.12 : x
  2. Step 2: Convert to fraction form
    530,118,010.64/731,554,120.68 = 310,138,703.12/x
  3. Step 3: Cross multiply
    530,118,010.64x = 731,554,120.68 × 310,138,703.12
  4. Step 4: Simplify right side
    530,118,010.64x = 226,883,246,249,787,168
  5. Step 5: Solve for x
    x = 226,883,246,249,787,168/530,118,010.64
  6. Step 6: Final answer
    x = 427,986,300.59

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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.