Home / 21,248,312,482.41-29,312,080,238.25-12,668,688,234.60

Finding the Fourth Proportional to 21,248,312,482.41, 29,312,080,238.25 and 12,668,688,234.60

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Solution

The fourth proportional to 21,248,312,482.41, 29,312,080,238.25 and 12,668,688,234.60 is: 17,476,475,195.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,312,482.41 : 29,312,080,238.25 = 12,668,688,234.60 : x
  2. Step 2: Convert to fraction form
    21,248,312,482.41/29,312,080,238.25 = 12,668,688,234.60/x
  3. Step 3: Cross multiply
    21,248,312,482.41x = 29,312,080,238.25 × 12,668,688,234.60
  4. Step 4: Simplify right side
    21,248,312,482.41x = 371,345,606,045,968,957,440
  5. Step 5: Solve for x
    x = 371,345,606,045,968,957,440/21,248,312,482.41
  6. Step 6: Final answer
    x = 17,476,475,195.54

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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.