Home / 289,995,417.40-434,993,126.10-98,519,193.40

Finding the Fourth Proportional to 289,995,417.40, 434,993,126.10 and 98,519,193.40

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Solution

The fourth proportional to 289,995,417.40, 434,993,126.10 and 98,519,193.40 is: 147,778,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,995,417.40 : 434,993,126.10 = 98,519,193.40 : x
  2. Step 2: Convert to fraction form
    289,995,417.40/434,993,126.10 = 98,519,193.40/x
  3. Step 3: Cross multiply
    289,995,417.40x = 434,993,126.10 × 98,519,193.40
  4. Step 4: Simplify right side
    289,995,417.40x = 42,855,171,917,916,496
  5. Step 5: Solve for x
    x = 42,855,171,917,916,496/289,995,417.40
  6. Step 6: Final answer
    x = 147,778,790.10

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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.