Home / 99,853,315.20-149,779,972.80-82,833,206.40

Finding the Fourth Proportional to 99,853,315.20, 149,779,972.80 and 82,833,206.40

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Solution

The fourth proportional to 99,853,315.20, 149,779,972.80 and 82,833,206.40 is: 124,249,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,853,315.20 : 149,779,972.80 = 82,833,206.40 : x
  2. Step 2: Convert to fraction form
    99,853,315.20/149,779,972.80 = 82,833,206.40/x
  3. Step 3: Cross multiply
    99,853,315.20x = 149,779,972.80 × 82,833,206.40
  4. Step 4: Simplify right side
    99,853,315.20x = 12,406,755,401,528,788
  5. Step 5: Solve for x
    x = 12,406,755,401,528,788/99,853,315.20
  6. Step 6: Final answer
    x = 124,249,809.60

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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.