Home / 201,018,139.80-301,527,209.70-86,014,307.40

Finding the Fourth Proportional to 201,018,139.80, 301,527,209.70 and 86,014,307.40

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Solution

The fourth proportional to 201,018,139.80, 301,527,209.70 and 86,014,307.40 is: 129,021,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,018,139.80 : 301,527,209.70 = 86,014,307.40 : x
  2. Step 2: Convert to fraction form
    201,018,139.80/301,527,209.70 = 86,014,307.40/x
  3. Step 3: Cross multiply
    201,018,139.80x = 301,527,209.70 × 86,014,307.40
  4. Step 4: Simplify right side
    201,018,139.80x = 25,935,654,104,600,064
  5. Step 5: Solve for x
    x = 25,935,654,104,600,064/201,018,139.80
  6. Step 6: Final answer
    x = 129,021,461.10

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1.5x scale

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.