Finding the Fourth Proportional to 390,986,265,062.18, 586,162,908,253.86 and 122,236,909,253.80
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Solution
The fourth proportional to 390,986,265,062.18, 586,162,908,253.86 and 122,236,909,253.80 is: 183,256,417,492.76
Step by Step Solution
- Step 1: Write the proportion equation
390,986,265,062.18 : 586,162,908,253.86 = 122,236,909,253.80 : x - Step 2: Convert to fraction form
390,986,265,062.18/586,162,908,253.86 = 122,236,909,253.80/x - Step 3: Cross multiply
390,986,265,062.18x = 586,162,908,253.86 × 122,236,909,253.80 - Step 4: Simplify right side
390,986,265,062.18x = 71,650,742,224,170,581,491,712 - Step 5: Solve for x
x = 71,650,742,224,170,581,491,712/390,986,265,062.18 - Step 6: Final answer
x = 183,256,417,492.76
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.