Finding the Fourth Proportional to 997,272,034.80, 1,495,908,052.20 and 915,642,697.20
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Solution
The fourth proportional to 997,272,034.80, 1,495,908,052.20 and 915,642,697.20 is: 1,373,464,045.80
Step by Step Solution
- Step 1: Write the proportion equation
997,272,034.80 : 1,495,908,052.20 = 915,642,697.20 : x - Step 2: Convert to fraction form
997,272,034.80/1,495,908,052.20 = 915,642,697.20/x - Step 3: Cross multiply
997,272,034.80x = 1,495,908,052.20 × 915,642,697.20 - Step 4: Simplify right side
997,272,034.80x = 1,369,717,283,679,606,528 - Step 5: Solve for x
x = 1,369,717,283,679,606,528/997,272,034.80 - Step 6: Final answer
x = 1,373,464,045.80
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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.