Home / 425,736,020.40-638,604,030.60-119,027,641.20

Finding the Fourth Proportional to 425,736,020.40, 638,604,030.60 and 119,027,641.20

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Solution

The fourth proportional to 425,736,020.40, 638,604,030.60 and 119,027,641.20 is: 178,541,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,736,020.40 : 638,604,030.60 = 119,027,641.20 : x
  2. Step 2: Convert to fraction form
    425,736,020.40/638,604,030.60 = 119,027,641.20/x
  3. Step 3: Cross multiply
    425,736,020.40x = 638,604,030.60 × 119,027,641.20
  4. Step 4: Simplify right side
    425,736,020.40x = 76,011,531,423,130,624
  5. Step 5: Solve for x
    x = 76,011,531,423,130,624/425,736,020.40
  6. Step 6: Final answer
    x = 178,541,461.80

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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.