Finding the Fourth Proportional to 944,784,931.80, 1,417,177,397.70 and 854,386,817.70
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Solution
The fourth proportional to 944,784,931.80, 1,417,177,397.70 and 854,386,817.70 is: 1,281,580,226.55
Step by Step Solution
- Step 1: Write the proportion equation
944,784,931.80 : 1,417,177,397.70 = 854,386,817.70 : x - Step 2: Convert to fraction form
944,784,931.80/1,417,177,397.70 = 854,386,817.70/x - Step 3: Cross multiply
944,784,931.80x = 1,417,177,397.70 × 854,386,817.70 - Step 4: Simplify right side
944,784,931.80x = 1,210,817,686,937,270,528 - Step 5: Solve for x
x = 1,210,817,686,937,270,528/944,784,931.80 - Step 6: Final answer
x = 1,281,580,226.55
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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.