Home / 288,013,916.70-432,020,875.05-211,486,412.70

Finding the Fourth Proportional to 288,013,916.70, 432,020,875.05 and 211,486,412.70

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Solution

The fourth proportional to 288,013,916.70, 432,020,875.05 and 211,486,412.70 is: 317,229,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,013,916.70 : 432,020,875.05 = 211,486,412.70 : x
  2. Step 2: Convert to fraction form
    288,013,916.70/432,020,875.05 = 211,486,412.70/x
  3. Step 3: Cross multiply
    288,013,916.70x = 432,020,875.05 × 211,486,412.70
  4. Step 4: Simplify right side
    288,013,916.70x = 91,366,545,075,839,424
  5. Step 5: Solve for x
    x = 91,366,545,075,839,424/288,013,916.70
  6. Step 6: Final answer
    x = 317,229,619.05

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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.