Home / 668,889,315.35-1,003,333,973.03-424,001,302.55

Finding the Fourth Proportional to 668,889,315.35, 1,003,333,973.03 and 424,001,302.55

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Solution

The fourth proportional to 668,889,315.35, 1,003,333,973.03 and 424,001,302.55 is: 636,001,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,889,315.35 : 1,003,333,973.03 = 424,001,302.55 : x
  2. Step 2: Convert to fraction form
    668,889,315.35/1,003,333,973.03 = 424,001,302.55/x
  3. Step 3: Cross multiply
    668,889,315.35x = 1,003,333,973.03 × 424,001,302.55
  4. Step 4: Simplify right side
    668,889,315.35x = 425,414,911,457,386,560
  5. Step 5: Solve for x
    x = 425,414,911,457,386,560/668,889,315.35
  6. Step 6: Final answer
    x = 636,001,953.83

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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.