Home / 21,248,312,480.16-29,312,080,235.16-12,668,688,232.38

Finding the Fourth Proportional to 21,248,312,480.16, 29,312,080,235.16 and 12,668,688,232.38

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Solution

The fourth proportional to 21,248,312,480.16, 29,312,080,235.16 and 12,668,688,232.38 is: 17,476,475,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,312,480.16 : 29,312,080,235.16 = 12,668,688,232.38 : x
  2. Step 2: Convert to fraction form
    21,248,312,480.16/29,312,080,235.16 = 12,668,688,232.38/x
  3. Step 3: Cross multiply
    21,248,312,480.16x = 29,312,080,235.16 × 12,668,688,232.38
  4. Step 4: Simplify right side
    21,248,312,480.16x = 371,345,605,941,749,874,688
  5. Step 5: Solve for x
    x = 371,345,605,941,749,874,688/21,248,312,480.16
  6. Step 6: Final answer
    x = 17,476,475,192.49

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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.