Home / 420,376,916.40-630,565,374.60-420,376,916.40

Finding the Fourth Proportional to 420,376,916.40, 630,565,374.60 and 420,376,916.40

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Solution

The fourth proportional to 420,376,916.40, 630,565,374.60 and 420,376,916.40 is: 630,565,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,376,916.40 : 630,565,374.60 = 420,376,916.40 : x
  2. Step 2: Convert to fraction form
    420,376,916.40/630,565,374.60 = 420,376,916.40/x
  3. Step 3: Cross multiply
    420,376,916.40x = 630,565,374.60 × 420,376,916.40
  4. Step 4: Simplify right side
    420,376,916.40x = 265,075,127,762,958,880
  5. Step 5: Solve for x
    x = 265,075,127,762,958,880/420,376,916.40
  6. Step 6: Final answer
    x = 630,565,374.60

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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.