Home / 30,602,888.16-42,231,981.60-16,851,818.40

Finding the Fourth Proportional to 30,602,888.16, 42,231,981.60 and 16,851,818.40

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Solution

The fourth proportional to 30,602,888.16, 42,231,981.60 and 16,851,818.40 is: 23,255,507.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,602,888.16 : 42,231,981.60 = 16,851,818.40 : x
  2. Step 2: Convert to fraction form
    30,602,888.16/42,231,981.60 = 16,851,818.40/x
  3. Step 3: Cross multiply
    30,602,888.16x = 42,231,981.60 × 16,851,818.40
  4. Step 4: Simplify right side
    30,602,888.16x = 711,685,684,595,341.38
  5. Step 5: Solve for x
    x = 711,685,684,595,341.38/30,602,888.16
  6. Step 6: Final answer
    x = 23,255,507.16

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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.