Home / 285,311,457,783.39-393,730,065,058.93-156,855,091,946.47

Finding the Fourth Proportional to 285,311,457,783.39, 393,730,065,058.93 and 156,855,091,946.47

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Solution

The fourth proportional to 285,311,457,783.39, 393,730,065,058.93 and 156,855,091,946.47 is: 216,460,166,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,311,457,783.39 : 393,730,065,058.93 = 156,855,091,946.47 : x
  2. Step 2: Convert to fraction form
    285,311,457,783.39/393,730,065,058.93 = 156,855,091,946.47/x
  3. Step 3: Cross multiply
    285,311,457,783.39x = 393,730,065,058.93 × 156,855,091,946.47
  4. Step 4: Simplify right side
    285,311,457,783.39x = 61,758,565,556,908,078,399,488
  5. Step 5: Solve for x
    x = 61,758,565,556,908,078,399,488/285,311,457,783.39
  6. Step 6: Final answer
    x = 216,460,166,152.16

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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.