Home / 129,775,513,501.76-179,087,838,257.76-71,903,682,237.92

Finding the Fourth Proportional to 129,775,513,501.76, 179,087,838,257.76 and 71,903,682,237.92

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Solution

The fourth proportional to 129,775,513,501.76, 179,087,838,257.76 and 71,903,682,237.92 is: 99,225,768,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,775,513,501.76 : 179,087,838,257.76 = 71,903,682,237.92 : x
  2. Step 2: Convert to fraction form
    129,775,513,501.76/179,087,838,257.76 = 71,903,682,237.92/x
  3. Step 3: Cross multiply
    129,775,513,501.76x = 179,087,838,257.76 × 71,903,682,237.92
  4. Step 4: Simplify right side
    129,775,513,501.76x = 12,877,075,014,761,987,440,640
  5. Step 5: Solve for x
    x = 12,877,075,014,761,987,440,640/129,775,513,501.76
  6. Step 6: Final answer
    x = 99,225,768,153.77

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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.