Home / 256,484,570.40-384,689,530.80-74,712,794.40

Finding the Fourth Proportional to 256,484,570.40, 384,689,530.80 and 74,712,794.40

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Solution

The fourth proportional to 256,484,570.40, 384,689,530.80 and 74,712,794.40 is: 112,058,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,484,570.40 : 384,689,530.80 = 74,712,794.40 : x
  2. Step 2: Convert to fraction form
    256,484,570.40/384,689,530.80 = 74,712,794.40/x
  3. Step 3: Cross multiply
    256,484,570.40x = 384,689,530.80 × 74,712,794.40
  4. Step 4: Simplify right side
    256,484,570.40x = 28,741,229,822,492,872
  5. Step 5: Solve for x
    x = 28,741,229,822,492,872/256,484,570.40
  6. Step 6: Final answer
    x = 112,058,319.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.