Home / 15,870,420,877.50-21,901,184,385.82-8,733,834,689.57

Finding the Fourth Proportional to 15,870,420,877.50, 21,901,184,385.82 and 8,733,834,689.57

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Solution

The fourth proportional to 15,870,420,877.50, 21,901,184,385.82 and 8,733,834,689.57 is: 12,052,693,838.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870,420,877.50 : 21,901,184,385.82 = 8,733,834,689.57 : x
  2. Step 2: Convert to fraction form
    15,870,420,877.50/21,901,184,385.82 = 8,733,834,689.57/x
  3. Step 3: Cross multiply
    15,870,420,877.50x = 21,901,184,385.82 × 8,733,834,689.57
  4. Step 4: Simplify right side
    15,870,420,877.50x = 191,281,323,931,543,535,616
  5. Step 5: Solve for x
    x = 191,281,323,931,543,535,616/15,870,420,877.50
  6. Step 6: Final answer
    x = 12,052,693,838.93

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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.