Home / 938,443,192.32-1,295,017,689.60-520,773,703.68

Finding the Fourth Proportional to 938,443,192.32, 1,295,017,689.60 and 520,773,703.68

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Solution

The fourth proportional to 938,443,192.32, 1,295,017,689.60 and 520,773,703.68 is: 718,648,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,443,192.32 : 1,295,017,689.60 = 520,773,703.68 : x
  2. Step 2: Convert to fraction form
    938,443,192.32/1,295,017,689.60 = 520,773,703.68/x
  3. Step 3: Cross multiply
    938,443,192.32x = 1,295,017,689.60 × 520,773,703.68
  4. Step 4: Simplify right side
    938,443,192.32x = 674,411,158,544,108,544
  5. Step 5: Solve for x
    x = 674,411,158,544,108,544/938,443,192.32
  6. Step 6: Final answer
    x = 718,648,890.06

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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.