Home / 1,077,051,443.40-1,615,577,165.10-421,784,690.40

Finding the Fourth Proportional to 1,077,051,443.40, 1,615,577,165.10 and 421,784,690.40

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Solution

The fourth proportional to 1,077,051,443.40, 1,615,577,165.10 and 421,784,690.40 is: 632,677,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,051,443.40 : 1,615,577,165.10 = 421,784,690.40 : x
  2. Step 2: Convert to fraction form
    1,077,051,443.40/1,615,577,165.10 = 421,784,690.40/x
  3. Step 3: Cross multiply
    1,077,051,443.40x = 1,615,577,165.10 × 421,784,690.40
  4. Step 4: Simplify right side
    1,077,051,443.40x = 681,425,714,399,013,120
  5. Step 5: Solve for x
    x = 681,425,714,399,013,120/1,077,051,443.40
  6. Step 6: Final answer
    x = 632,677,035.60

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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.