Home / 875,806,654.32-1,208,616,384.96-473,920,405.20

Finding the Fourth Proportional to 875,806,654.32, 1,208,616,384.96 and 473,920,405.20

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Solution

The fourth proportional to 875,806,654.32, 1,208,616,384.96 and 473,920,405.20 is: 654,011,891.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,806,654.32 : 1,208,616,384.96 = 473,920,405.20 : x
  2. Step 2: Convert to fraction form
    875,806,654.32/1,208,616,384.96 = 473,920,405.20/x
  3. Step 3: Cross multiply
    875,806,654.32x = 1,208,616,384.96 × 473,920,405.20
  4. Step 4: Simplify right side
    875,806,654.32x = 572,787,966,891,602,368
  5. Step 5: Solve for x
    x = 572,787,966,891,602,368/875,806,654.32
  6. Step 6: Final answer
    x = 654,011,891.86

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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.