Home / 284,349,843,172.40-392,402,688,864.78-155,888,533,654.80

Finding the Fourth Proportional to 284,349,843,172.40, 392,402,688,864.78 and 155,888,533,654.80

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Solution

The fourth proportional to 284,349,843,172.40, 392,402,688,864.78 and 155,888,533,654.80 is: 215,126,124,519.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,349,843,172.40 : 392,402,688,864.78 = 155,888,533,654.80 : x
  2. Step 2: Convert to fraction form
    284,349,843,172.40/392,402,688,864.78 = 155,888,533,654.80/x
  3. Step 3: Cross multiply
    284,349,843,172.40x = 392,402,688,864.78 × 155,888,533,654.80
  4. Step 4: Simplify right side
    284,349,843,172.40x = 61,171,079,769,331,265,961,984
  5. Step 5: Solve for x
    x = 61,171,079,769,331,265,961,984/284,349,843,172.40
  6. Step 6: Final answer
    x = 215,126,124,519.24

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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.