Home / 72,254,567.84-99,712,021.59-39,215,110.50

Finding the Fourth Proportional to 72,254,567.84, 99,712,021.59 and 39,215,110.50

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Solution

The fourth proportional to 72,254,567.84, 99,712,021.59 and 39,215,110.50 is: 54,117,242.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,254,567.84 : 99,712,021.59 = 39,215,110.50 : x
  2. Step 2: Convert to fraction form
    72,254,567.84/99,712,021.59 = 39,215,110.50/x
  3. Step 3: Cross multiply
    72,254,567.84x = 99,712,021.59 × 39,215,110.50
  4. Step 4: Simplify right side
    72,254,567.84x = 3,910,217,944,830,236
  5. Step 5: Solve for x
    x = 3,910,217,944,830,236/72,254,567.84
  6. Step 6: Final answer
    x = 54,117,242.16

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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.