Home / 212,205,547.20-318,355,795.08-64,664,654.28

Finding the Fourth Proportional to 212,205,547.20, 318,355,795.08 and 64,664,654.28

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Solution

The fourth proportional to 212,205,547.20, 318,355,795.08 and 64,664,654.28 is: 97,011,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,205,547.20 : 318,355,795.08 = 64,664,654.28 : x
  2. Step 2: Convert to fraction form
    212,205,547.20/318,355,795.08 = 64,664,654.28/x
  3. Step 3: Cross multiply
    212,205,547.20x = 318,355,795.08 × 64,664,654.28
  4. Step 4: Simplify right side
    212,205,547.20x = 20,586,367,426,882,724
  5. Step 5: Solve for x
    x = 20,586,367,426,882,724/212,205,547.20
  6. Step 6: Final answer
    x = 97,011,448.09

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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.