Home / 18,581,292,001.20-27,871,938,001.80-12,695,320,340.40

Finding the Fourth Proportional to 18,581,292,001.20, 27,871,938,001.80 and 12,695,320,340.40

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Solution

The fourth proportional to 18,581,292,001.20, 27,871,938,001.80 and 12,695,320,340.40 is: 19,042,980,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581,292,001.20 : 27,871,938,001.80 = 12,695,320,340.40 : x
  2. Step 2: Convert to fraction form
    18,581,292,001.20/27,871,938,001.80 = 12,695,320,340.40/x
  3. Step 3: Cross multiply
    18,581,292,001.20x = 27,871,938,001.80 × 12,695,320,340.40
  4. Step 4: Simplify right side
    18,581,292,001.20x = 353,843,181,440,619,249,664
  5. Step 5: Solve for x
    x = 353,843,181,440,619,249,664/18,581,292,001.20
  6. Step 6: Final answer
    x = 19,042,980,510.60

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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.