Home / 38,838,886.90-53,596,904.18-21,197,915.93

Finding the Fourth Proportional to 38,838,886.90, 53,596,904.18 and 21,197,915.93

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Solution

The fourth proportional to 38,838,886.90, 53,596,904.18 and 21,197,915.93 is: 29,252,709.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,838,886.90 : 53,596,904.18 = 21,197,915.93 : x
  2. Step 2: Convert to fraction form
    38,838,886.90/53,596,904.18 = 21,197,915.93/x
  3. Step 3: Cross multiply
    38,838,886.90x = 53,596,904.18 × 21,197,915.93
  4. Step 4: Simplify right side
    38,838,886.90x = 1,136,142,668,943,908.25
  5. Step 5: Solve for x
    x = 1,136,142,668,943,908.25/38,838,886.90
  6. Step 6: Final answer
    x = 29,252,709.33

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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.