Home / 282,689,952,744.65-390,111,603,545.88-154,231,488,380.08

Finding the Fourth Proportional to 282,689,952,744.65, 390,111,603,545.88 and 154,231,488,380.08

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Solution

The fourth proportional to 282,689,952,744.65, 390,111,603,545.88 and 154,231,488,380.08 is: 212,839,164,126.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,689,952,744.65 : 390,111,603,545.88 = 154,231,488,380.08 : x
  2. Step 2: Convert to fraction form
    282,689,952,744.65/390,111,603,545.88 = 154,231,488,380.08/x
  3. Step 3: Cross multiply
    282,689,952,744.65x = 390,111,603,545.88 × 154,231,488,380.08
  4. Step 4: Simplify right side
    282,689,952,744.65x = 60,167,493,249,220,762,140,672
  5. Step 5: Solve for x
    x = 60,167,493,249,220,762,140,672/282,689,952,744.65
  6. Step 6: Final answer
    x = 212,839,164,126.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.