Home / 1,359,018,111.32-2,038,529,531.65-426,412,529.85

Finding the Fourth Proportional to 1,359,018,111.32, 2,038,529,531.65 and 426,412,529.85

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Solution

The fourth proportional to 1,359,018,111.32, 2,038,529,531.65 and 426,412,529.85 is: 639,619,536.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,018,111.32 : 2,038,529,531.65 = 426,412,529.85 : x
  2. Step 2: Convert to fraction form
    1,359,018,111.32/2,038,529,531.65 = 426,412,529.85/x
  3. Step 3: Cross multiply
    1,359,018,111.32x = 2,038,529,531.65 × 426,412,529.85
  4. Step 4: Simplify right side
    1,359,018,111.32x = 869,254,534,762,680,064
  5. Step 5: Solve for x
    x = 869,254,534,762,680,064/1,359,018,111.32
  6. Step 6: Final answer
    x = 639,619,536.72

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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.